The top 12 or so seeds are fairly easy to work out... Justine, Serena, Kim, Venus, Amelie, Lindsay, Nastya and Nadia will be top 8. The order might change, but I don't see anyone catching Nadia... and V and S will get special seedings. So 9-12 are likely to be Jenn, Vera... and probably Ai and Sveta. 13-32, obviously anything can happen. (All of this assumes that everyone plays.)
So much will depend on the draw... if one of the big four is not 100%, then whichever of Amelie/Lindsay/Nastya/Nadia she draws has a great chance of upsetting her. If Amelie gets Vera or Sveta in the fourth round, and is nervous... that could be an upset in the making.