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Same,
One of the biggest things I want out of Ultra is for them to actually come to our dimension for a huge scale invasion
One of Sun and Moons most interesting plotlines was that Nihilego was infecting the Aether Foundation and brainwashing all the grunts so maybe this time we can see that concept spread even farther, maybe all over the region and they can go nuts with the design of the infected people and pokemon, maybe it even infects some of our friends/allies who we are then forced to battle, with Necrozma paralleling this by absorbing Nebby
Have all the Ultra Beasts come out at once all over the region, show the effects of what they're doing and make it feel like a really high stakes situation, and show as many characters as possible trying to deal with them (Kukui, Looker, Anabel, Trial Captians, etc.)
Zygarde awakens and combines to his full form to hold the line to repel the UB's, and all the other old legendaries arrive too as they sense the danger
Now that we get NEW Ultra Beasts, the possibilities are just all over the place
After the crisis ends, we can go catch the Ultra Beasts by traveling to their respective Ultra Spaces