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.