I don't know if this is already proposed, or even technically possible, but that's will be nice to have all the maps reunite in one map. We will be able to travel between the maps by highway and tunnel, with suffisante lenght to load the next map. That will allow us to changed maps quick, keep our temporary configurations and more roleplay.
That won't be possible because that would probably be too GPU-demanding if all the maps were in one map.
If your talking about a transition thing like Forza Horizon had going for the map expansions in 2 and 3 then yeah, could be interesting
Yeah I don't mind sitting in a load screen so long as I don't have to back out to the menu to go there. Would be pretty fun to have portals to other maps. Also, seeing as the maps were never a hypothetical "Pangea" i don't think that REUNITE would be the correct word. You're looking for the word UNITE.
I wouldn't be surprised if the devs start experimenting with this stuff when the career mode is finished. If they wanted this to be a game, they probably would have atleast tried like everything else.
There is lua triggers in game, there is torque script command loadLevel() So someone just need to test what happens...