the CFTC investigation goes all the way back to december 2017 and is presumably still active. now that the DOJ has been involved for several months i won't be surprised to see criminal enforcement actions and bank seizures against them, and maybe a takedown of their domains too.
I'm pretty sure Bitfinex and Tether are going to run out of business soon. They have too many shady activities, not to mention Bitfinex logo suddenly vanished from Cryptocapital site (which is the payment processor for Quadriga, Cex, Coinapult etc, all of them have gone dead).
Hopefully the truth will comes to the surface sooner or later.