Keep the ether. For example, people say having anonymous transactions is COOL. But they will implement it on ethereum. If being able to send a coin from X to Y anonymously is a big thing, imagine how cool it is to not just do that, but to implement it in dapps / smart contracts. It was tested succesfully on ethereum https://blog.ethereum.org/2017/01/19/update-integrating-zcash-ethereum/ . Next big thing is chosing the best option to scale the chain and then it'll become a killer scalable all in one chain, making every other rival project obsolete.