I completely agree to this. for bounties and new projects to stop, blockchain itself has to stop - which is virtually impossible. Bounties have become a standard way of advertisement in blockchain and in the right hands, can be a very awesome advertisement tool. However, my concern now is this - how would you be able to fetch out the real bounties? How will bounties be limited to a few users in the future?
A lot of new bounties have sprouted out within the past six months. however, 80% of them are either a scam or wouldn't keep to their words. picking the best of bounties has become quite a problem. Even though bounties will never stop coming out. people will soon lose interest in them if there is no mechanism set-up to regulate these campaigns, filter out scam and ensure that bounty managers actually pay the hunters for their work.
As for new projects, their fate is the same as that of bounties. In the coming few months, you would see a lot of new projects come to evolve. however, fetching out the best projects is the hard part. but I believe with a little bit of research, and doing your due diligence, you will eventually find your way around.