Hello,
old OFF Phase3/HiTR owner who just bought both WOFF and Expansion, so it's hour and a half or so fresh impressions from top of my head:

-mouse controlled views -but can't say if CFS3 engine allows that for us yet-to-buy-TrackIR users (if there any beside me)
-as mentioned earlier some kind of even permanent small label indicating flight leader
-smooth zooming transitions in the cockpit view