What difference would the General Electric F110-GE-132 make to the F-15E/I/S/K/SG?

The F-16E/F came with lots and lots of goodies, most of which have now found their (or equivilant technology level) way into the new F-15 variants, such as the AESA radar. The one obvious item that hasnt made this transition is the F110-GE-132 engine, is there a reason for this? What difference would the addition of this engine make? I assume it could only be an improvement.