I'm already making Spork, and completing it would be enough to make me happy, but I have had a few other ideas I've thought of for games.
1. A prequel to Spork where the player is a Sea Star. I've planned some of it out in case I decide to do this. This would show important past events like the beginning of the Pokemon League in the Ceolis region. The player wouldn't be challenging the league, since the league formation would be the end point of the prequel and there was only one Champion before, so the player dethroning him would contradict that. In the player's journey they would end up meeting some of the future Gym Leaders and E4 and battle them under different circumstances, though. (death isn't a thing in the Spork universe, so some characters who look like young adults are Really 700 Years Old)
2. Parodies of the official games based on name puns. For example, the RBY/FRLG parody would take place in the Canned Toe region (with gray walls replacing trees in some maps to represent it being canned). Your rival is Glue, a literal bottle of glue. Gym Leaders and E4 have different types since they have different name puns (although Misty is still Water, since her name pun is Miss Tea).
3. Pokemon Meme Version. Starter is Mudkip, since the professor herd u liek them. Levels go over 9000. The main legendary is an ogre that represents love and life. When you beat a Gym Leader, the guide at the entrance says "Damn champ in the making, back at it again with the badges." Two villainous teams: Team White and Gold, and Team Black and Blue, who argue over what colors a specific legendary Pokemon is. When you enter the Hall of Fame, you're congratulated on being the 1,000,000 visitor and when you win a battle the "Congratulations, you won" sound effect plays. The bike is a unicycle that turns you into a Greninja when you ride it.