The Perpetual Kingdom!
It's really tough to keep a group together for a long ass time. If it's always kind of a looser connection between them, then it'd be different, of course. ...but yea, the Undisputed Kingdom could (and probably should) be a mainstay stable for years to come really. Sometimes with members going their own way for a while, without really breaking the group apart etc.
For 2025, I think the best thing for them would be to establish the group as a group... which means mostly Tag and Trios feuds. With the HoB gone and the Trios Titles being kinda floundered around with the Death Riders story, there is an open spot for a Trio to really put their mark on the division this year.