I don't see Bitcoin going away any time soon. It's the only crypto currently widely accepted in real businesses where you can buy real tangible stuff other than mining rigs/contracts (with the only purpose of just generating more of the same currency you just spent).+

It will take a lot of time and trust from businesses to switch or accept a different crypto. Just look at this sub, full of forks/relaunches/fails because everyone and their sisters want to have their own cryptocoin to milk the hype train.

I'm a firm believer that altcoins are just experiments that serve as a proof of concept for things that can be integrated into the Bitcoin protocol, and some surely will do in the not-so-far-ahead future.