Topic Wintergrasp is a great place, revive it
One fairly easy solution to WG is to increase the honor gained for being there. Today its like half of what you get in TB, even though it has increased since earlier its still a bit low. Why not up it to same levels as TB? Also you could implement the commendations in WG and let them buy head/should enchants with it. Or rename the TB commendations so that WG and TB could give the same type of commendations. Yes maybe this makes ppl below lvl 85 the possibility to start grinding marks to use when they hit lvl 85 at the vendor but you know what blizzard... it wouldn't be the end of the world.
Also make sure that TB and WG dont occur at the same time I want to participate in both