The thing now is, even if they allow withdrawals on January 28, it might spark a "bank run" which could lead to a complete collapse of the exchange. I say so because people are already pensive and worried about their money, and if they are able to withdraw it, they might want to move it to another platform, and if it happens in numbers, we know the outcome.
Liquidation is one of the biggest problems that brings most firms to their knees be it an exchange or another firm in a different ecosystem. The question is how would sudden liquidation be covered up? Take an exchange in such a situation owing multiple users a compiled amount, if they take the decision of borrowing from a bank (which the chances are thin based on collateral), the end up switching owed liquidity from their customers to the bank.
There is a high chance they file up for bankruptcy and in the end those who stored their coins there lose them eventually. This is one of the major reasons you need to be careful when choosing exchanges.