Good that they are repeating the 'higher than 55/45 ratio" for stayers. It also seems that they will have FIAT services as well from day 1. I'm optimistic that when the new exchange goes online and enough trading takes places, fees will make sure the tokens can be redeemed in the future.
Regarding the FBI: They probably won't have a legal base to interfere when they are no longer dealing with US citizens. And even if they do, you can see from the last indictment, that it takes at least 6 months to get the exchange down after the judge has made the call. And before a judge even approves such an indictment, that's probably a big process as well.
Where was the legal base when they seized the servers? First the DoJ starts off with some rant about Vinnik and Mt Gox. Mt Gox was not in the US, it was in Japan and Karpeles is not a US citizen he is French. So they seized the BTC-e servers with a search warrant, most likely they were sniffing for information to actually charge someone with something because they didn't have any. Think about that!