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The LWD folks mentioned it as a possibility back in the post-Gen Con 2014 newsletter, but nothing has happened since then. Neither d20Pro Unlimited nor RW's Content Market updates have come out, so I'm sure they're both pretty busy with other things.
d20Pro is likely going to be using the same mechanism that Syrinscape used for their integration. We actually talked to them about it when we were at PaizoCon. So it's currently planned, but neither of us can give you an ETA for integration right now.