Previously known as the "Blizzard Cup" back in 2011, the GSL Tour will collect 10 players from seven tournaments in a single event that'll proclaim the champion of champions.

The best players from GSL, OSL, BWC, MLG, IPL, DreamHack and WCG will come together December 17-22. Six players are already known and the list as of November 30th is as follows:

GSL Tour line-up

GSL Top 3: MVP, DongRaeGu, TBD
OSL Champion: Rain
BWC Champion: PartinG
MLG Fall Champion: Life
IPL 5 Champion: TBD
IPL 5 Runner-up: TBD
DreamHack Winter Champion: HerO
WCG Champion: TBD

Additionally, the regular GSL and GSTL seasons will undergo changes. There will be four GSL season in 2013 with Code S staying the same and Code A and Up/Downs altered slightly. GSTL, on the other hand, will have only two seasons instead of three and will feature a full league format with a regular season going into playoffs.

Source: TL.net