Someone can answer the question.
bittrex wrote in their message that they would partially support the zclassic holders after the fork (because the wallet was closed and people could not get the coins off the exchange). It turns out that they do not give any guarantee. How do you think can throw or not ??
bittrex will issue btcp

or not??? they can cheat ??
They will give if everything works (fork, wallet, ...) If there is a problem, they can't give anything