Still you have an option to withdraw in some other currencies, such as Ethereum for example and somewhere else you can exchange it to bitcoin

Ofcourse it is better to verify your account on bittrex for future purpose.
A newbie account must verify to transfer more than 0.025 BTC. yes this condition they did not display anywhere, but while you are transferring your coins, you will get this error message. Any how you want to do big amount transaction you need to verify your account. So now only provide your id and recent selfie and verify the account. Within few hours your account will be verified.