More Updates from Blizzcon
New League Icons: Your league icon improves in quality as you move up in your league.
New Details On The League and Ladders Page: Many more details of your status will be given on the league and ladders page, as well as a special banner if your #1 in your division
Season 2 Soon: The matchmaking system will not reset and you will only have to play one game to be placed in a new league. The date of the new season will be announced soon.
Masters and Grand Masters: The masters will be those in the top 5% of each diamond league. Grand Masters will be the top 200 players in each region.
Featured Replays Inside Starcraft 2
Chat Channels Before the End Of The Year: Both public and private channels will be available.
Co-op Replays: Watching replay’s with your friends is confirmed for next year.
(Source: teamliquid.net)