A trios title would be cool. Don't know if they have enough talent for that but I guess a mix of tag and trios teams would help. Can use already established teams and newly created teams. Would create some new and interesting matchups. I don't think a championship matters tho. There is no wrestler on any promotion who my opinion of would change depending on whether or not they have a championship. Championships are pointless in a scripted sport.
I mentioned earlier they have several teams that could be trios (inner circle, Jurassic Express, death triangle, the elite, the nightmare family, best friends and OC, Dark Order, SCU.
those are just teams already with three members that aren’t really in the tag division scene. There are plenty of combinations within that to have a Trios division, let alone if you start pairing other people (Party Hardy was mentioned, Janela, Kiss and someone else, Cage, Starks and someone else etc.)
The argument for title bloat is silly. In wrestling none of the matches mean anything, it’s all fake anyway. Might as well add more divisions so you don’t have completely pointless matches with zero motivation from the wrestlers other than just putting one over the other