Hope this answers your questions,
Mary and Lindsay are out so,
Mary's points after Wim - 1636
Lindsay's pt's after Wim - 1588
that would put them at 9 and 10 in safe points (6. Kuznetsova 1933, 7. Dementieva 1866, 8. Schynder 1753)
Hingis' points shd she reach:
R16 - 1430
QF - 1508
SF - 1684
F - 1826
W - 2034
Nadia has 2134 points after deducting her QFs points from last year. Which means top 5 is out of the question (contrary to what Mahest Bhupati said
If Hingis wins, the highest she can go is #6, but that's only if sveta loses before the 4th round, Elena before the QF and Patty before the F.
Should Hingis lose in the finals or SF, she'll definitely overtake Mary and Lindsay and reach at least #9. If she's a finalist, she'll be #8 if Patty loses before the 4th Rd. But if she loses in the finals to Nastya, Franny or Nicole she'll be #10. If she loses in the SF and Nastya, Franny, ALG or Nicole reach the finals she would be #10 (if 1 of the 4 is in the finals) or #11 (if 2 of the 4 are in the finals)
Hence, anything less than a SF would not result in a place in the top 10...(dun worry there's still the US Open
Ranking wise, it's a 5 way race between Hingis, Nastya, Franny, Nicole and ALG. Whoever advances futher gets to be the highest in this group. It's very likely that these 5 will contend for the #11 spot, unless they all make the SFs...
Since nearly everyone's prediciting that Hingis will lose the QF to JHH, she'll probably reach #11 after Wimbledon as amongst the 5 of them, Hingis has the easiest potential R16 opponent in Patty. Franny could potentially take that spot as she has Elena D in her quarter which is the 2nd weakest top 8 seed on grass. So it's likely to be #11 or #12 for Hingis after Wimbledon.
Fingers crossed that she exceeds expectations rather than fall short of it...