After I bought several domain names with new top-level-domains and collected experience with them over the years, it has become clear to me that some of them have high potential while most of them will never have any value:
1. First choice are generic terms that fits well in combination with the top-level-domain after the dot like http://royale.casino http://internet.sex http://service.chat http://pay.express or http://pc.help .
It is very important that the words before AND after the dot match well to each other.
Then - and only then - even not well-known extensions should be used like the above mentioned examples, because internet users know already that something different than 'com' could appear after the dot.
Another important criteria is the sequence of the used words. E.g. http://shop.cam has a slightly different meaning than http://cam.shop . The first is suitable for the search of cameras or a price comparison portal, the second fits to a specialized shop that sells cameras.
Not seldom two keywords reduce the value of a domain if lined up in the opposite direction, because the original meaning gets lost.
2. Many companies are willing to use top-level-domains that obviously make sense and fits to their business model like .online, .app, .shop, .club or .site.
But .shop has not yet reached its potential due to its high registration fees in comparison.
3. High demand exist for brandable company names with endings like .cloud, .digital, .global and .group that can be included into the company description itself.
A company that is using both sides of the dot for its name looks even more professional than in combination with a .com.
E.g. the domain http://infinity.group makes a better impression than http://infinitygroup.com , because the latter is too long to read it comfortably.
The numbers of registered domains for those three extensions are low, because their use makes only sense with quality keywords before the dot.
Also, the advantage is lower for the endings .llc, .ltd, .limited and the German .gmbh.
4. No sustainable interest exists for cheap top-level-domains that have been only pushed by low registration fees like .icu, .wang, .bid, .party or .loan.
Those are actively used mainly by spammers and cyber criminals.
In addition, domain investors from China are buying them a lot, not seldom to get rid of them one year after.
Also, .click and .link belongs to this category, although their meaning is not as absurd as from the extensions in the following category.
However, .xyz accomplished to build a remarkable success of permanent customers with this strategy.
5. No interest at all exists for top-level-domains without widespread usable meaning like .fyi, .gdn, .gop, .wed, .whoswho and many more.
I also would allocate .tel to this category, even if the term 'tel' is not the worst in comparison with many other extensions.
At least, the term 'tel' has a recognizable meaning compared to the five other examples.
Conclusion:
Considering the advantage of a specific domain name, new top-level-domains make absolutely sense and could be much better than other options.
But this applies only to commercially usable or quality keywords before and after the dot.
If you own a domain with good keywords left and right of the dot that have a high demand, it will be a valuable asset.
Internet traffic can be generated with a new top-level-domain just as good as with a .com.
On the other hand, only very few top-level-domains have the potential to reach mainstream (as those from category number two above).
A lot of top-level-domains don't and won't have any significance on the internet. Not a few are even useless.
1. First choice are generic terms that fits well in combination with the top-level-domain after the dot like http://royale.casino http://internet.sex http://service.chat http://pay.express or http://pc.help .
It is very important that the words before AND after the dot match well to each other.
Then - and only then - even not well-known extensions should be used like the above mentioned examples, because internet users know already that something different than 'com' could appear after the dot.
Another important criteria is the sequence of the used words. E.g. http://shop.cam has a slightly different meaning than http://cam.shop . The first is suitable for the search of cameras or a price comparison portal, the second fits to a specialized shop that sells cameras.
Not seldom two keywords reduce the value of a domain if lined up in the opposite direction, because the original meaning gets lost.
2. Many companies are willing to use top-level-domains that obviously make sense and fits to their business model like .online, .app, .shop, .club or .site.
But .shop has not yet reached its potential due to its high registration fees in comparison.
3. High demand exist for brandable company names with endings like .cloud, .digital, .global and .group that can be included into the company description itself.
A company that is using both sides of the dot for its name looks even more professional than in combination with a .com.
E.g. the domain http://infinity.group makes a better impression than http://infinitygroup.com , because the latter is too long to read it comfortably.
The numbers of registered domains for those three extensions are low, because their use makes only sense with quality keywords before the dot.
Also, the advantage is lower for the endings .llc, .ltd, .limited and the German .gmbh.
4. No sustainable interest exists for cheap top-level-domains that have been only pushed by low registration fees like .icu, .wang, .bid, .party or .loan.
Those are actively used mainly by spammers and cyber criminals.
In addition, domain investors from China are buying them a lot, not seldom to get rid of them one year after.
Also, .click and .link belongs to this category, although their meaning is not as absurd as from the extensions in the following category.
However, .xyz accomplished to build a remarkable success of permanent customers with this strategy.
5. No interest at all exists for top-level-domains without widespread usable meaning like .fyi, .gdn, .gop, .wed, .whoswho and many more.
I also would allocate .tel to this category, even if the term 'tel' is not the worst in comparison with many other extensions.
At least, the term 'tel' has a recognizable meaning compared to the five other examples.
Conclusion:
Considering the advantage of a specific domain name, new top-level-domains make absolutely sense and could be much better than other options.
But this applies only to commercially usable or quality keywords before and after the dot.
If you own a domain with good keywords left and right of the dot that have a high demand, it will be a valuable asset.
Internet traffic can be generated with a new top-level-domain just as good as with a .com.
On the other hand, only very few top-level-domains have the potential to reach mainstream (as those from category number two above).
A lot of top-level-domains don't and won't have any significance on the internet. Not a few are even useless.