I don't see a reason for the Japanese promotions, AIW or Kaiju to be added into the games. The Japanese promotions are not promoted in North America besides New Japan (who should be a part of JAPW IMO.) AIW has too many guys either maxed out (The Crists, AeroForm, Del Ray, Portia, Gargano and Colt) or others who are not in the game. Kaiju IMO is too gimmicky and is not actually wrestling. I think Kaiju was in an older game but so was UFC which is not wrestling.
I looks like JCW is the clear promotion to add as of right now. Every other promotion has one suggestion for each. I would be fine with UWF, once I know the can last and run more than one show. Only their First Blood Show is promoted for now.
The only promotion I'd suggest that hasn't been is Pro Wrestling Fusion out of Florida. Fusion has The Shiek (Current NWA Champion) Craig Classic, Chris Jones, Sinn, Fracncisto Ciasto, Shawn Spears, Scoot Andrews, Bruce Santee, The Shane Twins, Heartbreak Express, The Lifeguards, Mike (Titan) Jarvi, TJP, Christopher Gray, Brad Allen, CJ Doyle and Vordell Walker among others.
I Agree with the JCW and PWF.