>>58212870
People are already doing that and bigger. This project is adding additions to existing routes on top of already having all 3 regions and there is talk about adding gen 4 as well. They even reworked the minimap to show everything. (This image isn't just an image, but there is an in-game video I've seen of the map from the Pokenav.) Importing FRLG map into Emerald is possible, the hard work is adding extra onto the routes and connectors, but even that isn't really that hard and this hack adds so much more than that.