It really does sound like they're going down for the three-count this time.

How much content have they taped after BFG? I think they normally do a month's worth over three days IIRC, so they will have Impact shows "in the can" at least until the end of this month.
But what happens then, does
Impact Wrestling suddenly disappear from TV with no explanation?
Whatever may or may not rise from the ashes of TNA, under Billy Corgan or anyone else, I hope they do at least get to do a proper farewell show to tie up all the loose ends after well over ten years, even if it's just a retrospective "greatest hits" compilation with just verbal references to the ending of the current storylines..