I think it's a tad too early to make WC predictions...I mean anything can happen til then. We've still got a lot of shuffling to be had from now until the end of the challenger series.
Barring injury, expect rankings to rise for Monique Adamcak, Nicole Kriz, Lauren Breadmore and Casey Dellacqua after the Oz challengers (they don't have much to defend at all)...also depending on how much they play, juniors like Dubravka Cupac, Olivia Lukaszewicz and Sophie Ferguson should all rise a few hundred spots hopefully. With the exception of Casey (who will undoubtedly get a MD WC) I expect all, or most, of these girls to get qualy WC's. Add Christina Horiatopoulos (if she doesn't I will personally hunt down TA personnel

), Daniella Dominikovic and Gabrielle Baker to the potential qualy list.
Anyway, players that have no chance IMO are Musgrave, Sewell, McShea, Dittmann, Van Elden and Roberts. Depending on how Bryanne Stewart goes in the challengers, she will also miss out. She has a better shot than the above players though because of her past history and (slightly) higher profile. Ditto Cindy Watson and Amanda Grahame. (BTW, for this group in this paragraph I'm talking QUALY WC's, none of them will get a MD one obviously)
Szili should NOT get one for ANYTHING. I think she has won 2 matches all year. I hope she can prove us wrong though by turning things around herself come October