Slim to none.
Which is too bad, because I really enjoyed Pokemon Origins and I'd LOVE IT if they did a full-length anime similar in style and tone to it. One a little more serious, mature, remove the Pokemon Speak (I liked it when the Pokemon made sounds and behaved like animals), follow the games' plots a little more closely, etc. One that can be enjoyable for the kids because they'll watch anything with Pokemon, but also enjoyable to the franchise's now-older generations. I also liked how Pokemon Origins incorporated real-world logic that explained plot holes in the game, like Gym Leaders choosing their Pokemon based on the experience level of the challenger (explaining why Brock has level 10-14 Pokemon while Giovanni has level 50 Pokemon), or Giovanni choosing to dismantle Team Rocket after Red beat him because Red gave him such a challenge that he remembered why he got into Pokemon in the first place (instead of just going, "Oh, you inspired me to quit my gang business" out of nowhere like the game.) I would have liked to have seen how much farther they took it. I'd also like it if they made it so each season was about one region (Season 1 is Kanto, Season 2 Johto, Season 3 Hoenn, etc), and have the main character(s) and rival(s) of the game be the main characters of that region, rather than having Ash (loosely inspired by Red) visit the new regions over and over.
If wishes were horses, right?