Scrolled through the 34 DD molds listed on Infinite (there's actually 35 including the new Vandal)
DDs: Captain, Criminal, Defender, Enforcer, Freedom, Raider, Renegade, Sheriff, Trespass.
If they're getting rid of 12 total, and evenly distribute the cuts amongst speed classes, either 3 or 4 of these are gone. So...Defender or Enforcer, Freedom or Renegade, AND Sheriff or Captain seems like what they'd eliminate, as each of those sets of two overlap somewhat. I doubt they lose the Defender because of PP, so it's probably the Enforcer there. I hope they lose both the Freedom and Renegade, and keep both the Captain and Sheriff, but it seems to make more sense to get rid of one of each group.
Control drivers: Breakout, Convict, Escape, Felon, Getaway, Maverick, Thief, Vandal, Witness.
I think my beloved Convict (it probably says something about my "ability" that I really like this mold) and two of the three relatively-similar stable/US molds (Breakout, Maverick, Thief) are the likely casualties here. I hope the Witness is safe as I use that for some turnovers and rollers
Mids: EMac Truth, Evidence, Fugitive, Justice, Patrol, Proof, Suspect, Truth, Verdict, Warrant. 10 total, 3 or 4 need to go. I would think Fugitive and Proof would be both gone, along with Verdict or Suspect, AND Warrant or Evidence.
That leaves two putters to eliminate. I've never thrown any of their putters, so I got nothin' there.
That's the best guess from a middling old guy who has tried, thrown, and/or bagged a lot of DD stuff in the 18 months or so since I switched from FH to BH (love how Fuzion plastic feels for me BH) but doesn't know much about the relative popularity of the various molds - take it for what it's worth.
If I'm right, I need to stock up on Convicts, and whichever between Sheriff and Captain goes away. I also bag a Trespass, Felon, EMac Truth, and Justice but I think those four are safe