PoP flagging cost Sony more customers then any other expansion in the history of EQ. Not to mention the inane and extremely annoying spell system. Not that that has anything to do with this poll.
Changing it now is irrevelant. The progression experience itself is really all that PoP has left that's worth anything. If you're doing it for loot, other then a few moderately useful click items from Time, then you're wasting your time. Experience wise PoFire is still decent but there's just as good and even better areas for far less effort.
Don't take this the wrong way. At this point I couldn't care less what they decide to do with it.
The one thing that does need to be changed is having 1.5/2.0 epic fights in flag required PoP zones.