Bets on who is the next?

I wouldn't be surprised if it was all of them, but perhaps Bestmixer had particularly gaping holes in how they operated.
it sure sounds like it. all their servers were in the netherlands/luxembourg---seriously, who does that? of course those servers were going to get nabbed eventually.
If it were me I'd shut up shop. Or at the very least go camping in the woods and see if there are any actual charges brought from this. I can't see any mention of anyone being charged for anything yet.
no arrests at all. the media reports make it sound like they don't even know or understand the extent of money laundering being done. like AdolfinWolf said, "shoot first ask questions later".