Why not just add a second set of hardlines?
Ok to explain, lets call the known and current hardlines "Hardlines A" these are the ones that take us to all the districts we currently have. If we make another group "Hardline B" we could use that to get to any added new districts and for the new districts itself.
I'm not entirely sure how the programing is set up to have a object used as a teleporter but my guess it would have to be some sort of a script used in the object so when you interact with it via mouse clicks it brings up the menu with the choices of "loading Area" "Hardline" Abilities" etc.
If this is the case then wouldnt be possible to use the modern telephone booths scattered in the known districts as a "hardline B" option?"
We know that the new constructs and the White Hallways use a similar teleport device as the hardlines with the exception of the added menu, but I think if we could tackle the problem of also adding the menu to the actual teleport script we could be in buisness as far as getting a way to get to new districts (if any are ever created).
Like wise we could use the same concept for the white hallways where to get a door open you would need a key, plenty of doors in there to set something like that up but for the sake of lag chose seven doors you can try at first. You use the key on a certain door, get it open and are transported to a different part of the Matrix, exactly how the Hallways were meant to be used and it fits with the movie's concept.
As far as the new Districts , if any are created you could add train lines as well as its just a teleporter with alot more animation (with the train pulling up and leaving the subway) .
Anyway that was something I was thinking about, I wont even pretend to say I understand the programming involved for this game but sometimes the best solutions are the most simplest.
