[Omnikaiser]

the funny thing about it though is it's kinda the opposite direction of Build (half gimmick) and something like Zero-One (Takahashi previous work).

Build and Zero-one are very science/technological evolution rider and the gimmicks were mostly based on animals/creatures appearances.

While Geats, if rumors are true for the other riders, are "animal riders" (fox, tanuki, cat, panda etc) but the gimmick might be "technology", as if you were in a video game and chose an avatar with a certain appearance, and then you can equip whatever you want depending the class/playstyle you are/you want (so far Magnum and Boost for Geats)

They're really pushing the video game aspect further than just references to genres like Ex-Aid (Geats has this "ready! fight!" sound etc)