We already have a johto remake

1. Unova’s next in line

2. Heart gold and soul silver exist

3. Now a legends remake? Maybe Unova?

Depends. Honestly, I’m not keen on the idea of a possible Legends series going in region order from Sinnoh and on. It feels like Gamefreak and TPC wouldn’t do that. Plus, to me, a Legends Johto game would be a lot more interesting. Traditional remakes would be Unova next though.

Kalos if they were cool

It's gonna be Legends Johto and Unova remake

Pokemon grey please gamefreak PLEASE

We need Pokemon Z.

Either way, I haven’t played either region described here. (I only played the games from Y-Violet. I haven’t played any Pokémon game older than XY)

unova is next in line, and hopefully we get it in 2024-2025. from what i've heard, black and white were really good, so hopefully they don't wreck it and make it like bdsp

Johto already got a remake, Unova deserves it way more. And besides, once we get Unova than Kalos is next in line.