Oh I thought I mentioned it here but guess not: I would like, and might even expect, the uhhh battle moves, i guess you'd call them, to remain in.
I suspect moving forward the "normal" games will probably not have the "battle in this actual spot on the actual overworld", but something I think would be very plausible is how the Pokemon do kind of move a little around their area. They wont stick near the pokemon they just hit, but if you idle long enough you'll see them adjust their position a little. It helps keep them lively and finally makes good use of those walking/running animations; though sometims it can get a little awkward like with Sneasler. The battle system can already handle up to 4 pokemon + 2 trainers at once so they kind of resolved that aspect from day 1, in more complex terrain.