Would make for a good "mini" or "side-story" it would be interesting to see the point of view of a new region from someone other than Ash and the gang. Sort of like Chronicles, and besides if you ask me it would probably boost game sales and promotions to see the new Pokemon used in good battles instead of being a "Pokemon of the day" where a new Pokemon is thrown into an episode for the sake of it making a Pokedex appearance.
I know for one as it has been mentioned before doing that type of crisp animation would take a lot of time along with keeping up with the consistency. However, what I did admire was how those 2 promos reminded me of Naruto especially the look and moves of the Shadow Triad if anything it was great to see Team Plasma in action and looking like an actual threat!
Another thing that the promo showed was the unique movements of certain Pokemon based on their body type I was especially impressed with the way Serperior used Slam and the way Scoutland ran across the Frenzy Plant to launch Hyper Beam in order to destroy the vines.
Overall, I would like to see a handful of "episodes" just to see how ratings go and from there it would be a nice touch to promotion. I would love it if they had a DVD to come with the new games so buyers could watch those promos :)