I've already written somewhere that no one should be surprised if some TrumpMix appears - and considering how the DOJ surprised us recently, it seems that anything is possible. The company's slogan could be "Trust us with your mix, only clean government seized coins" 
On a more serious note: it'll depend on who you're trying to hide from. Anyone who's not that government still won't know which coins trace back to you. But a normal centralized exchange can break that on-chain link a lot cheaper.