Not sure what you mean, there are several iterations floating around on the internet but the mockup on display right now looks pretty good! LED strip headlamps instead of the traditional round clusters on the 7000, chamfered corners that give the front bonnet a sort of octagon look, etc.
https://img.washingtonpost.com/wp-ap...&high_res=true
Unfortunately I don't love the interiors. Hard plastic seats might be fine for a more urban subway system where many trips are <30 minutes long, but these will be super uncomfortable for suburban commuters taking the long ride from Dulles, Shady Grove, etc. Those longer trips really demand some softer seats like the original Metro stock had, or like you would see on MARC/VRE.