I think Ethereum has the largest chance of surviving in the future (smart contracts)
Zcash for privacy
Decred for governance
BTC for store of value.
It'll be interesting to see further categories beyond the above emerge.
I agree with you, but why Decred? I dont see anyone talking about this coin, can you explain to me why do you think that coin will survive in the time? I dont see any big feature in this coin that others doesnt have.
But yes, maybe i would add Waves to your list, that project is gonna be huge, it just need more time to develop more features and products that are gonna make it brilliant.
At the moment, waves dev are working fine, and i think that buying those coins are gonna give us a lot of profit.