Spent lots of time messing with the walk thru walls cheat now since I can actually see what's going on thanks to Asfar's code. Unfortunately, the occasions where I previously managed to go out of bounds using the Wrong Entrance all involve being stuck in OoB territory, you can walk around but can't pass through any of the barrier to go back in bounds. So the only way you could ever take advantage of the connected maps would be to use Forced Character Movement, that is, using a trigger that causes character movement (Guard in FE Village, "It's Locked" doors, etc.). And I don't believe there are any triggers like this accessible from a map that's connected to anything.
Just in case anyone's curious: All the huts in FE village are connected, and one connects to Blimp's hut, which I believe then connects to Jaguar Ring cave>Raptor Cave>HB cave>Volcano Path cave>Drain cave. Almost all of the Volcano is connected, which is also connected to the Armor salesman near the entrance. The Crustacea rooms are connected. I think the Ivory/Ebon Keep houses are mostly connected, although not in a horizontal fashion. The Dark Forest is pretty connected I think, although it is a very strange and glitchy place to mess around in (probably why Panda fried his one cart), going OoB and going into other entrances causes strange outcomes. I believe all maps roll over eventually (same with the entire row of connected maps) and on a "rollover" map essentially nothing can happen, no triggers exist, attacking freezes the character, spells don't have affects.
Just in case anyone's curious: All the huts in FE village are connected, and one connects to Blimp's hut, which I believe then connects to Jaguar Ring cave>Raptor Cave>HB cave>Volcano Path cave>Drain cave. Almost all of the Volcano is connected, which is also connected to the Armor salesman near the entrance. The Crustacea rooms are connected. I think the Ivory/Ebon Keep houses are mostly connected, although not in a horizontal fashion. The Dark Forest is pretty connected I think, although it is a very strange and glitchy place to mess around in (probably why Panda fried his one cart), going OoB and going into other entrances causes strange outcomes. I believe all maps roll over eventually (same with the entire row of connected maps) and on a "rollover" map essentially nothing can happen, no triggers exist, attacking freezes the character, spells don't have affects.