I see the DPA are reintroducing there tour card for next year, not sure how it will work as they never get many more than 70 at the comps and this year has so far been better than last. They will be looking at having fields of 128 at its events.
As part of the Tour Card they will be offering up to 16 tour cards to women. This seems to be in a direct result of the announcement from the PDC re: The World Championships. Think the expectation is that they will play against the men but will be given every opportunity to prove that they can compete.
May also indicate that the PDC have got plans for further developments of tours to accommodate women. (The CDC already gives tour cards to women for its tour).