The developers of Paper Mario: Color Splash said in an interview with GameXplain that if enough fans asked, they could make a remake of Paper Mario: The Thousand Year Door. So, let's let them hear what we really want! We want a game like Paper Mario: The Thousand Year Door! Not just a HD Remake or a game like sticker star! We want something that we've been waiting for for over a decade! A Paper Mario game, with RPG element's like Paper Mario: The Thousand Year Door, and a story as good as Super Paper Mario!

Here is a link to the interview by GameXplain: https://www.youtube.com/watch?v=oD2YdfSCw5Y