Once withdrawals were turned off for an extended period of time, recovery was not possible. Volume dropped to nothing and trust was completely broken. There's no point in WEX coming back now.
They'd probably still find users willing to flock to their exchange if they resumed operations and started repaying their debts. There aren't that many KYC-less exchanges, with minimal KYC for fiat deposits/withdrawals as was the case with btc-e/wex. At one point you could even make large deposits and withdrawals in cash (I think the minimum was $50k USD for EU countries).
I do think so too. After the BTC-e debacle, WEX came back pretty strong. Many of the BTC-e user were on WEX again.
But people will not trust WEX if there is not a solid story from them why this WEX story happend as it did with no info to the users.
Also 'the stolen funds' part is not confirmed, is that what really happend? I do read that there are still hugh amounts in their cold wallets.
Last tweet from them was 'Bees against honey', who was doing that? Who are the 'bees'? Is the user database still there?