Will 5-6 letter domain will be popular in the future like 3-4 letter domains are today?
 

lets say in 10-20 years from now, do you think there will be big buzz around those 5-6 letter domains?

If the 5 letters make sense. I would scoop them up, because there is so much junk out there selling. I have a few LLLL .coms and LNN .net etc. people want them. Buy and save them for a rainy day.

3-4 letter ones are valuable because they are pretty rare... but there are 36 times more 5 character domains, than 4 letter domains... so doesn't seem likely that random 5 characters will ever become very valuable... plus alternative extensions will probably be more and more accepted in the future too, reducing the value of .coms...

I hope so cause I'm about to reg fiveandsixletterdomainnames.com and hopefully it will be worth a fortune in a few years !