Not possible. BTC-E was Seized by many law enforcement agencies so you are very unlikely get your coins back, because even if they still have the private keys, i doubt that they will hand you any of them because in theory they own the keys now. However you can always try contacting some of the law enforcement agencies, if you wish to try. Wex has new databases and such, so the private keys are different for the exchange as well. I wish you the best of luck.