Some of the original drawings going back (late 1990s) to Moorfield (think that was them) showed a parallel along the line of the back of the main apron with fast run offs.
The stands would of moved from south to the north in front of the hangers.
current taxi ways are too narrow for anything bigger than A320 to the west and 737/A319 to the east. Even then from what I ve seen most stuff that size goes via the central taxi way anyway.