I heard that the wallet MEW may not be used anymore, this information is true. So if the wallet MEW for some reason can not be used then can we use any other wallet?
No, MEW will continue be live. You, maybe mean, that MEW devs splited into two teams with their own product - one continue MEW developing and other started new web wallet MyCrypto
https://mycrypto.com with "Captain Everything Officer" Taylor team lead (one of the MyEtherwallet founder).
Okay so thats cool whats the difference between the two wallets now?
I'm hoping they can come up with something that will let us easily claim dividends of some tokens that allows us to. MEW is already a good wallet to stick with, I have my 12 tokens there so far. They are the token I kept for long term.