The answer is capital NO. YES,BIG NOOOO. As long as the market is willing to accommodate everyone, we will always get new tokens in the market. bounties will keep on sprawling out from everywhere. back and forth.
Also, as exchange platforms keeps delisting old and garbage products from the market. new ones are likely to emerge and replace them.
just in, bittrex delisted over 40 coins from U.S market.
You are very correct, the essence of bounty is to provide upcoming project with adequate publicity and creation of awareness to potential investors. As long as we keep having new developmemt in terms of new projects, bounties will not cease to exist