I hope to see more specialized frameworks with different economies, goals and functionalities working with their associated crypto-currencies, it makes more sense to me. But you gave me a good topic to study in deep since i'm still a newbie in the "crypto-world" and RSK is something I've heard, but still pretty ignorant about.
One thing is certain, the crypto economy may reshape our world as much as smartphones or internet did. It will be fun to watch :-)
p.s. Sorry for my not-so-perfect english.
We will see how the future plays out, but I see the Bitcoin blockchain as an extremely secure, super valuable core were 2nd layers can be build on in form of side chains, off chain solutions and applications with all specialized functions and abilities.
They will be suited for different uses and economies. Thats why I think some people that are heavily invested in altcoins are trying to block Segwit in Bitcoin. Segwit will be the fundament of 2nd layers and is very well tested. It doesn't make any sense to block it if you want Bitcoin to move ahead.