Zen Majuub and Other Hypothetical Fusions

Do you guys think it's possible we could see a Zen Majuub in the future whether it's a temporary fusion OR a permanent one? I could only see permanent being possible if Zen Buu can't access the greater Multiverse after this tournament which as said above we're assuming for the sake of this discussion is the case.

How powerful do you think Zen Majuub would be? What would he look like (I doubt GT would influence the appearance since Salagir doesn't like GT)? And also would you guys like to see this even if it's just temporary? Also how likely do you think this is?

I think all potential other fusions could happen either via Fusion Dance or Potara and yes I said Potara is possible because I feel like Salagir set-up the idea of the SKs being able to undo Potara Fusion within a currently unknown limited timeframe after it happening as a means to allow Potaras to be used in the future of the story without being permanent. In no specific order, below are ones I came up with that are split by Most Likely to happen and Least Likely. It's not all of the potential ones as I didn't want to think them all up and also wanted to at least leave some for others to provide in their comments. Sorry if I listed too many and didn't leave a lot of options left available for others too mention.

Gogeta

Gohan² (U16 & U18 Gohan): I think this could happen maybe in the future and I really hope it does. Might even be why we saw what looked like dead Gohan in the Bardock vision to prevent this from being a possibility to oppose Vegito.

Vegeta² (U13 & U18 Vegeta)

Goten²

Trunks² (maybe even Trunks³)

Piccolo²

Some Sorta Kaioshin Fusion

Yamuhan/Tiencha (Yamcha & Tien)

Nappitz/Rappa (Nappa & Raditz)

Vegappa/Negeta (U13 Vegeta & U13 Nappa)

Coolza/Froola (Cooler & Frieza)

Some Sorta Heliote Fusion

Multiple Saiyans Fused