Well, that looks like pokemon. So that's something. Since it's clear they aren't changing the graphics, or the overworld, the only thing that could really revolutionize the games is a change in the battle system. Something like the big physical/special split, hopefully more though. Or I suppose the progression of the story. I'd love to see a change in the way HMs are handled (why should I have to carry around up to two useless pokemon, just to get around the world?). I'd love if the battles weren't random, but you actually saw the little guys running around in the field. I'd mostly like to see actual attack animations, which would be a pretty big deal at this point.
BlackNMild...you've never played a pokemon game? Were you in that awkward generation when it came out, where you were too old? Or just never interested? You should go get the new ones, they are easily the best ones. Despite the shortcomings, they are really great RPGs, with an interesting, strategy heavy, battle system. They are very goal oriented, so even when you're training grinding up your monsters, its not boring. And my favorite thing is the amount of game in them. There is SO MUCH content it gets overwhelming. I've put around 65 hours into SoulSilver, and I'm maybe only 2/3s through it, and that's only 2/3s through the story. Post story, if you wanted to "catch 'em all", well there's 493, with my 60 hours I've seen about 100, and caught about 90. There's the battle frontier, you can rematch all 16 gym leaders and do small quests to be able to, and not to mention if you want to play competitively you'll pretty much sink literally 100s of hours in.