I'm of two minds about the playing up the "cop" attributes of the GLC. In one sense, it's the Corps that distiguishes GL from other superheroes, and it makes sense to play that up. On the other hand, One Green Lantern is special. Two is redundant, and anything more than four are cannon fodder.
That was basically the Darkstars from the '90s.
I'd love to see the Corps in a battle with an enemy whose origins aren't derived from a Guardian screw up, or another color coded ring.
or a story where a sector rebels because they think the Guardians are a bunch of morons, or things along those lines.
They are kind of doing the now in R.E.B.E.L.S.