I like the idea of a video game theme Kamen Rider

It would mix of Tron and Scott Pilgrim VS. The World!

It would be funny if Ex-Aid VS. Monster of the week would act like arcade fighting game like they did with Scott Pilgrim VS. The World!

Now Toei need to find the narrator that sound like a Video Game Narrator! :)

If the video game rumor is true, I hope something similar to Gridman with the main rider going to a cyber world to fight monsters. My idea for a gimmick would be discs or SD cards.

I can see that. Possibly with the monsters starting off as just video game enemies then having them start to bleed out into the real world. Kinda like Ryuki.

wasn't the voice of the gaia memories in sonic colors

Err... I love that asymmetrical helmet-with-hair shit. If it looks at all like AkibaRed or KR Meteor, I will be suuuuper thrilled. Especially with the rumored color scheme of pink and green.

No idea; the last Sonic game I played was Sonic 3. I do know that the Decadriver's voice was also the announcer in King of Fighters Maximum Impact 2.

Maybe it might have those Gashapon things as it's transformation gimmick or something like that. Like randomly get a new power or something like that.

What is this gashapons? Can someone understand me of this Ex-Aid Collectible Device?

These are gashapon machines. They're the little toys that come in plastic capsules.

https://i.imgur.com/oL8NVJD.jpg

For reference, Kamen Rider Birth is themed after a Gashapon machine too.