If i were an airport planner, i would completely demolish pier C, rebuild pier B but extend it so that it meets up with the south end of T2, that way you would have one long gates area and passengers would be able to transfer betwene terminals airside. You could also then have parallel taxyways going to/from T2, and have drive though gates between the 2 taxyways to enable fast turnarounds.
However i am just a lowly pilot so dont get a say in these matters....