Who's seen the new changes Blizzard are making to tournaments then? They're here for reference:
http://www.teamliquid.net/forum/viewmessage.php?topic_id=405929
Basically GSL/OSL are now the same thing (3 seasons this year since it's part way through already) and will now be known as WCS Korea. Then there'll be WCS Europe (again 3 seasons this year, run by ESL (the guys that run IEM) and WCS NA (run by MLG), MLG and IEM is, afaik, going to carry on as normal, there may be points given to those competing in other tournaments (like MLG, IEM, DH etc) but that's so far undecided/announced. All the tournaments will follow GSL's current format with Code A>Up&Downs>Code S style. WCS NA and EU will be held online (although there's talk of a live event for the top 16), WCS KR will be held in GOM's studio for the first and third season, and in OGN's for the second.
The top players from each WCS (5 or 6 from each iirc, it'll say in the link) will then compete at a live event. Points will be given out during the 3 seasons (and maybe some from others as I said above) and there'll be a final event at Blizzcon.
Anyone can compete in any region, but once they compete in a region they're locked to it for that season. So everyone in Code S atm won't be able to then compete in WCS NA or EU this season.
I don't know how I feel about it atm, the first season should be fine because all the good Koreans are locked into WCS Korea so atleast that'll still be the highest standard this season, but next season I can see Koreans splitting up and taking part in the other regions (EGTL players have already tweeted that maybe they should compete in WCS NA or EU) which means that WCS KR will no longer have all the best players, just some of them with some worse players mixed in (and in turn the other regions will also be like this) and there'll be a lot of time spent just watching matches that are terrible. The finals will (hopefully) have all the best players, so maybe it won't be that bad, but that's still only a small tournament
. If the Koreans stick with just KR the whole thing (grand finals and WCS NA and EU) will be a joke though (the same as WCS NA and EU, and the grand finals with Koreans just stomping all the foreigners will be this season
).
Edit: It's the top 5 from each area and then one more from the host region iirc actually
.