Admittedly I never liked a single "NEW GAME+" mode in general, I'm really not a fan of the idea at its core.
That said, I think it would be an exceedingly poor fit for a game based on D&D, where the struggle for progression is basically the point of it and where most creatures are supposed to have a certain pre-established set of stats and abilities, so inflating numbers for the sake of it wouldn't make too much sense.
