I try to keep away from making long term predictions with crypto. Only thing they create are illusionary expectations that can mess up your game in the future
I'm not so skeptical
I can see some projects that have already proved to be able to bring a new value to the industry
for exmaple,
1. if you need to keep your money in safe but mobile place - you already have bitcoin
I dont care about payments but we already have safe and super mobile place to keep our money - impossible and even unimaginable in the past
2. if you need not so fast distributed contacts - you already have a platforms for that. Forget about speed, fault-free execution brought by decentralized cryptography - is already the value
3. blockchains - is already perfect solution for any kind of public registries, and they dont need your 15000 tx per sec
and I'm personally working on one of them and one of its important features is that this project does not need and wont need a superfast blockchains at all - the speed of existing solutions is already good enough