You can now upgrade your Wings of Liberty account to Heart of the Swarm
http://us.battle.net/sc2/en/buy-now/
Upgrade NA account will cost 59.99USD for deluxe edition and upgrade SEA account will cost 39.99USD for standard edition but upgrade either one will do the same because of Heart of the Swarm will be eligible for Global Play
https://us.battle.net/support/en/article/st...global-play-faq

Pre-order from Amazon can get beta key access
http://www.amazon.com/StarCraft-II-Heart-S...rt+of+the+Swarm

This post has been edited by ganick5461: Nov 14 2012, 09:42 AM

of course