What just do not invent scammers so that people themselves will tell them their secret keys. Administration MyEtherWallet has nothing to do with the addresses of wallets and their secret keys. They are generated randomly. Therefore, no update can in any way affect our secret keys to this purse. Therefore, such letters should not be paid attention. Moreover, when creating this purse, we do not leave any information about ourselves and no one can know your e-mail address.
it seems that i also get incoming email about it, but i didnt open that content. I agree with you, if the mew address is generated randomly, and if there is a renewal, there must be a notice on the main wall of MEW