The main reason I don't see this happening would be because I don't think that the Forbidden Forest is nearly as iconic or recognizable as Hogsmeade, Hogwarts, or Diagon Alley. At the end of the day, the Forbidden Forest is just that: a forest. Universal has done some amazing things with the theming for WWoHP, but even they may have problems finding a way to make a bunch of trees feel immersive.
Aside from that, the location you mentioned wouldn't make sense. The Forbidden Forest is at the edge of the castle grounds, and therefore wouldn't make sense to be placed outside of the entrance to Hogsmeade.