Return of Reckoning

First and foremost I'd make xrealm lockout affect only logging on overpopulated faction. Then, if player xrealms on opposite faction and continues to contribute there, contribution is gained on BOTH toons, for as long as new faction isn't overpopulated. Both characters should share contribution and both should get renown/crests/bag roll when zone locks based on shared contribution. Link between characters shouldn't be erased after zone locks, so player feels motivated to continue aiding underdog. This way players could progress their toons on overpopulated side faster while playing underdog side and making population imbalance less drastic outside of prime time.