They really could do a nice, grand TTC where it is right now. They don't need the ticket booths. I don't see the point in moving the buses and taxis to the South of the parking lot or over to STOL.
I know it's not a priority but the TTC is pretty utilitarian. I remember thinking that when I was a kid going there and how much like a regular bus stop it was.
I still think an improvement could be made by just crossing the outer monorail track with the Epcot track after the TTC so you get one continuous theme park loop. If you're leaving the MK you get on it, head to the TTC, get off if you need to get to your car, or stay on to continue your trip to Epcot instead of that weird down, around, and back loop you have to take to get to the Epcot loop.
Something like this (one goes over the other):
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