You're missing the point.

It doesn't matter how good these new algorithms are going to be. You brand-new shiny fancy "supercoin" is worth as much as people want to pay for it (a.k.a market cap). Bitcoin is a king here and is going to stay the king until bubble pop -just because billions of $$$ are already invested in Bitcoin. Your "supercoin" (and I assume it is mathematically/cryprographically is superior to Bitcoin) is going to be the third class member of this society at best. Most likely it won't worth the electricity spent mining it.

So I don't expect any new algorithms or any new coins of significant value; Bitcoin will stay #2, ETH #2 and I'm not sure about #3.
Frankly, I think Bitcoin will collapse rather sooner than later. However, it's not time yet. I think by 2019 it'll be all over.