Alright, first off:
The maps are horrible. They do not go along together with B/W sprites. It looks wacky and out of place. Also, the tiles are out of proportion, and don't align correctly with adjacent tiles.
Adding a "Route Leader" system seems annoying. That's what Trainers are for. And, if the player decides to skip them, let their team be beaten by the Gym Leaders. We don't need a "Route Leader" because of this.
This is plot related, but in D/P/Pt, no one else but the player stopped Team Galactic. There never were any adults who tried to stop them. Unless you're trying to alter the storyline, which is fine, it makes no sense that the player's parents went to Sinnoh to stop Team Galactic.