layed off due to covid so fuck my life here is the entire game so far
Twinleaf Town - 1 new building below where the small lake used to be, now its a lake + river to a new ocean area but not as big as the 3 lakes. building is a fishing port
left of twinleaf is a garden area being worked on where you could take your starter and baby pokemon out

sandgem town - same layout, rowan has a new assitant lucas/dawn will now be a more relevant rival but still helps out rowan. barry bumping into you has an animation now every time
- endgame - rotom will be running a muck within the lab once you defeat it oak will come in and upgrade you with the rotom dex

jubilife city - wifi tower area is now battleground connected to the trainer school
looker now appears after you defeat a galactic grunt in the trainer school

oreburgh city - mine is now a wild area with pokemon, roark has a cutscene with cranidos destroying some of the giant coal

floaroma town - nothing changes here