info: currently, %60 of total coin supply has been released. don't be late for mining, block reward will drop dramatically in two months.
Do you want to suggest, that it will die after that?
no, the coin will be come scarce (rare) which will cause the price to rase up. like other coins.
It also depends alot on the community and the coin owners how they will interact with the market and their coins (sell, buy, transaction with goods)
in my opinion a coin will have eternal live if it gets in the transaction system of an avarage user. (buy stuff with it)