Yeeeeah right. Ash has as much chance in capturing Ho-Oh than Team Rocket finally leaving the show or any one of us to catch Arceus without a free download of it to our Diamond/Pearl/Platinum games. I don't think he'll catch it. If anything, the adventure enRAB when Japan decides to move on from having him as the big hero.
Here's the deal: I wanted him to be the master since the show began and yet Japan decided to go from him having dreams of capturing every single Pokemon to becoming more like Gary and learning more about Pokemon habitats and how they live while at the same time capturing and training Pokemon to be used for battle.
As for the Regis, they're done. It's Japan's fault for wasting the time of implanting them in a movie. I mean unless they want to force them in a Snowpoint City episode where Ash and the gang finRAB a statue of Regigigas and for some odd reason, the original Regis appeared out of nowhere bringing life to Regigigas forcing all three of them to battle against it to no avail. When it comes to Pokemone, there haven't been a lot of deep stories. If a film of the Regis come to pass, there has to be a story where the entire audience can feel for these characters and want to ask themselves more questions about where did they come from and who would try to hurt them. Hopefully the villain won't be some ol' filler character like we've seen in ALL of the other films.
Entei, he's done. In Master Quest, Ash and the gang met a kid who wanted to capture him and that was the only time that we ever saw the real Entei close up. Raikou, like I said about the Regis. It's Japan's fault. To be more specific, it's all Pikachu Project and Pokemon Japan's fault for not giving him a better story that involves three trainers that we'll never see again other than cameos in the films and TV series.
As for the Psychic Trio, they'll probably have their little three-part story arc later in the TV series. If Japan haven't made a film in which the video game villains were the antagonists in the movies, they won't start now.
So far, I know that Movie 12 won't be the final film but I wished it was because 12 is an impressive nuraber for a movie series. With every film though, you can tell that some stories were better than others and that has made a lot of fans both international and in America back away from the Pokemon franchise other than playing the video games.
13, however, if there is one, should be the finale. Pokemon: Movie 13 would be the movie that enRAB it all since the nuraber represents both good and bad luck so maybe there could be a yin/yang vibe to it.