http://us.battle.net/heroes/en/forum...20748465427#15Originally Posted by Blizzard EntertainmentWe know that party size in Hero League is a pretty heavily debated topic in the community. We've also had frequent and lengthy discussions on this internally. (The latest being as recent as last week!) In all cases there are those who passionately argue that Hero League should be limited to Solo Queue, but also those who would prefer to keep Duo Queues, or even expand the limit to three-player parties.
We don't currently have plans to make changes to the party sizes allowed in Hero League, but know that it's an active discussion we're monitoring both internally and in the community.
As far as MMR is concerned, we still have no plans to implement complete resets. However, we are still going to increase uncertainty with each new ranked season, much like we did for season 1.