Just some possible scenarios.
So far the top 5 players in the ranking will not be passed until the US Open.
And it is for sure that Kim will fall to #5 before US Open.
Assuming Sveta not passing Maria, she is out of top 8 seed.
So without Serena/Venus getting SS
#1-4: Justine, Lindsay, Amelie, Nastya in any order before US Open.
#5-6: Kim, Elena
#7-8: Jenifer, Maria
#9-12 Sveta + 3 of Venus/Serena/Paola/Ai
If Serena gets seeded, it'll create quite a big impact with any of the top 4 can drop off from the top 2 or top 4 seeds. Also Maria will be bumped out of top 8 seed. Even Venus can be bumped out of top 12 seeds.
#1-4: Serena + 3 of (Justine, Lindsay, Amelie, Nastya)
#5-6: Kim + the unpicked from above
#7-8: Elena, Jennifer
#9-12 Maria + Sveta + 2 of Venus/Paola/Ai
If Venus is seeded as well, both Jennifer and Maria will be bumped out of top 8 and 2 of the top 4 will be bumped out of there. It could be anyone.
#1-4: Serena + Venus + 2 of (Justine, Lindsay, Amelie, Nastya)
#5-6: 2 unpicked from above
#7-8: Kim, Elena
#9-12 Jennifer + Maria + Sveta + Paola or Ai
Kim is unlikely to be seeded specially, what kind of ranking should she be seeded anyways, not to mention she has never won US Open. There really no point, but if she is to be seeded, I assume Venus will be seeded as well.
So if Kim is seeded as top 4.
1-4: Kim + Venus + Serena + (one of Amelie/Nastya/Justine/Lindsay)
5-8: Elena + 3 not picked above
9-12: Sveta+Maria+Jen+ (one of Ai/Paola)
But it's quite unlikely.