According to an article on sportnet, she is playing Beijing next
Well it could be, but I'd say highly unlikely. Since the main draw cut-off date is August 20th (when Donna was below #200) and that for qualies September 10th (around 180, I think), her only chance would be through a wild-card, as there are only 47 main draw and 28 quali direct acceptances.
Either the folks at Sportnet don't know what they're saying, or Donna's website hasn't been updated with this info, but after everything her fitness coach said during that Tashkent final coverage I'd bet on the former. Would be exciting to be wrong though