I've always noticed that Petra Kvitova tends to find her game every time she's playing on grass, especially here on Wimbledon. It's like she finds her killer instinct in full swing every time she's on a grass court.
There are many worthy nemesis on her side of the draw, including last year's finalist, Eugenie Bouchard, but Genie has been underwhelming this grand slam season. On paper, Alize Cornet and Casey Dellacqua are the other two players who have a chance at the semi-final slot for this side of the draw.
Petra's probable semi-final opponent could be Simona Halep, while either Maria or Serena should await her in the final. This looks like a strong semi-final and final line-up for me.