Yes, IAD is slated to do Asia.

Since the company hasn't been forthcoming with their plan I've been using united.com and looking for flights in May and June to see what is listed. I didn't spend too much time but I did find IAD to PEK, HND, and LHR on the 777. However, as mentioned above I find it hard to believe China is planning on opening their doors to foreign carriers in a few short months. I agree it's more likely to be years before a Chinese re-opening, BUT management just might have a better idea than us line pukes.