It honestly would not be surprising to me in the least if there was something going on in Bitfinex that resembles Mt.Gox's collapse to be entirely honest. They got hacked earlier, and while they're trying to make a comeback from that chances are it isn't going to work very well. If they manage to keep their exchange alive then good for them, but I'm doubting it more and more now.
They could move out of Taiwan. There's nothing to hold them there anymore. Maybe the servers are elsewhere anyways.
Beginning 18th April, all incoming wires to Bitfinex will be blocked and refused by their Taiwan banks. This applies to all fiat currencies at the present time.
That means Bitfinex doesn't have bank accounts anymore. It seams their accounts are closed.