I wouldn't mind any of those rumored bands, but I'd prefer TDEP or Gojira since I haven't seen either of them yet. I've seen COB and TBDM five and eight times respectively, so I'd definitely prefer something different.
9/4 Cult of Luna
9/11-13 Riot Fest
9/19 Uncle Acid & the Deadbeats
9/25 Cattle Decapitation
9/26 D.R.I. and/or Alcest