14 Months Ago, VirginWorlds MMO says (in City of Heroes / City of Villains: Issue 13: So big it can't be contained in a single update!) The Leveling Pact: A new innovation to MMOs, this groundbreaking system allows you and a buddy to create new characters and have your XP be permanently in sync, whether both characters are online or not. You will always be the same level, even if your buddy plays ten times more often than you...

15 Months Ago, hill-kleerup.org says (in Opinion: Still more I13 stuff) The Massively Interview with Posi: Brian Clayton and Matt Miller on Power and Responsibility in City of Heroes - Massively 

My thought? Meh. I mean, actually this is a plus and an encouragement to do arcs (vs police band missions), but anything that adds additional complexity to the marke...

And hill-kleerup.org says (in More I13 stuff) Villains level 40 and above can respec (re-select) their Patron Powers, offering the same flexibility that heroes are afforded with Ancillary Powers.

Dave says: N/A.  Supergroup Base Repricing

Dave says: Yay.  New Cimerora Missions

And Mike Fahey from Kotaku says (in City Of Heroes Mission Creator Somewhat Delayed [City Of Heroes]) Shield and Pain Domination powersets
Merit Reward system
Day Jobs (that include a suite of new costume pieces)
Additional Cimerora and Midnight Squad mission arcs

Leveling Pact
Multi-Builds
PvE & PvP Powers rebalancing
Villain Patron Power Respec
Supergroup Base Repricing