It is not possible to recover or reset your MyEtherWallet password in any way.
Knowing that now, what else do you wanna ask? If you want to know if it's still possible to access your wallet with just private keys, then the answer is yes. Afaik, MEW does not require a password to access your wallet using the Private Key, you just have to be sure that you're in the right site/correct URL before unlocking it.
Password is required only ro access that account on that desktop but if we have the private key we xan open the same wallet in the another system.All we need to do is go to the official MEW and go to the wallet create option with the private key.