In an attempt to bring SC2 more in balance with SC1BW then WC3, Team-Liquid is presenting 'SC2 ProMod", a mod for SC2 that changes various elements to make it more competitive.

http://www.teamliquid.net/forum/viewmessage.php?topic_id=117987

Things like auto-mining, surrounds, various units, buildings and the max-unit selection have been changed.
A detailed list can be found here:
http://www.sc2promod.com/features.html

Interesting for me personally, thors look more like goliaths, hellions more like firebats and immortals/stalkers behaving slightly more like goons. Also, there is only one geyser at the base and the higher ground advantage is back


However, rumours are that this is an early Aprils Fool...