I don't think BitStamp is dead just yet, actually I think they'll do just fine. BUT: Many people are going to want to play it safe, which is wise, and do their trades on Kraken. It's the go-to choice for people located in Europe, apart from Stamp and maybe Finex.
If a exchange gets hacked ONCE the stab of distrust stays forever, and people start migrating towards other exchange (that will eventually get hacked too). And so the bitcycle continues.
Lets just hope the winklebros fix this.