I feel like ASICs really have their place (I might have some bias there), but as long as there is some successful ASIC Resistant crypto out there I'll be using my GPUs.
Currently mining Vertcoin and I don't see any reason to stop that, why not both?
Yes, I think so too. There are already a lot of ASIC-secure crypto-currency. Over time, they will be even more.
And if ASIC manufacturers find a way to bypass this protection, then there will be new ASIC-protected algorithms.
Remember: every action generates reaction!