Beijing Subway Line 10
Was just in Chaoyang and took Line 10 on the way back from Agriculture Exhibition Center to Shaoyaoju and it looks very much like they've openned up the rest of the loop now. For some weeks, line 10 stations have had new boards with the route-map on it but with half of it covered and the trains themselves have only been lighting up a part of their map. Now most of that covering has been removed and the full board is lit up in the train. There are still a few individual stations that remain unlit (Fengtai station, for one) but it looks very much like, next season, getting out to watch Beijing Guoan may be less of a task. :-)One day, maybe, they'll connect Beijing West Station with the main subway system. :-(
2
I think it is not quite the whole loop but almost. The balance will be done next year. Yes, Beijing West will be connected.Check here and you'll see what is opening at the end of this month: http://en.wikipedia.org/wiki/Beijing_Subway (scroll three quarters down)
The new stations are already showing on google maps but not on http://www.explorebj.com/subway/ which is my favorite app in Beijing.

