I always thought that with any expansion back here they would need to add a landmark of some kind that's distinguishable in person, as well as on the park map. I always imagined a smaller version of something like the lighthouse at Islands of Adventure that you walk under to get in and out of the new Spain Hamlet preferably (

Spain! Spain! Spain!). Even this is complicated since in order to put something at the immediate entrance of the path or hamlet, it would have to be right next to the corner of Das Festhaus. Removing or moving Der Autobahn wouldn't help all that much as you'd still be funneled towards the back of the park to get around verbolten's event building.