Ethereum??

Hahah, no way. Ethereum is good tech, but it's not the most ideal concept here.

I'd keep my eyes on Ethereum forks, especially anti-censorship, pro-privacy, and pro-security focused ones, ones that might include a Steem type system, as well as masternode abilities. Something that takes the best of the best of all the altcoins, and puts them into one truly magnificent coin, a coin that's already equipped with future proofing gear on launch, as well as supported by legitimate developers who understand the extreme need for uncompromising privacy and security.