From various sources, MyEtherWallet (MEW) are not under development and maintenance any more. Even its founders has confirmed that they are switching to develop a new platform called mycrypto and encourage everybody to move there property to there.
But IMO, MEW or mycrypto is just a gateway to access your real wallet in the blockchain, so, both of them are still fine event MEW is not maintained anymore, right?
I believe Vitalik Buterin is always thinking of ways to improve the Ethereum blockchain, so if there is any update that is going to take place in Ethereum ecosystem, there will be notification on the Ethereum platform. I am a fan of Ethereum.