Bittrex ZCL wallet is under maintenance because obviously Bittrex does not have enough ZCL tokens to fulfil peoples desires to take it off the exchange. They are busy trying to scoop up cheap Zclassic to cater to all the buyers but are finding that hard.
We still don't know if Bittrex will support the fork, do we ?
No it doesn't support the fork. Bittrex sucks.