It is good news that Bitstamp recover the operation again, but they still need to do audit again to show they have 100% reserve for the users' fund. It is very likely a mtgox 2.0 if they cannot provide enough evidence they have equity to cover the loss.
The Bitcoin they have, it is not the Bitstamp's asset. The funds belongs to their clients.
There will be massive withdrawals (price is going down already). You have to be crazy to keep your funds in Bistamp at least for a while(2-3 months). Why? I am pretty sure they did not fix any bug. They just changed the servers.
It is impossible(and this can be certified by any programmer) to identify a hack in a financial platform in 3-4 days, to fix it and then to setup a new server and so on..