Okay, I've got a bunch of spoilers and yes, they're true. Do not read this if you want to enjoy the book without knowing some very odd, weird, and important plot points. I got this from someone who got the Canadian release. Read at your own risk.
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1. Natasi Daala is the new GA Chief-of-State
Jaina kills Jacen
Allana is presumed dead and is taken as Han and Leia's ward and she is supposedly called Amelia
Jagged Fel is made head of the Moff council
Zekk is missing and presumed dead, but that usually means that no one died. In SW you usually need a corpse for them to be dead
Ben and Tahiri engage in a lightsaber fight, which ends in Ben's victory and his knighthood begins. He doesn't kill Tahiri, however, and she is arrested by the Hapans for interragation...whatever that means.
Perfection is a lifelong pursuit requiring sacrifice. The only way to get it quicker is to sacrifice the most.