White Ultra Prime promo image found - Ultra Magnus?

[Paulbot]

In parallel, you could have Silverbolt repainted as Skyquake combining with the Aerialbots repainted as the Predators. Stalker can be the chest plate.

[Zommael]

Thunder Clash with a new head-sculpt and the Turbomasters combining to form Hyperdrive would be pretty cool.

In parallel, you could have Silverbolt repainted as Skyquake combining with the Aerialbots repainted as the Predators. Stalker can be the chest plate.

I suspect both of these ideas are in the "too awesome to exist category". Although Hasbro and IDW have both acknowledged that TC exists lately for the first time in years, so anything's possible.