I'd be happy with just seeing Wintergrasp brought to current content. Easily the best PvP experience i've ever had in WoW, despite my server being a small one, those battles were just plain epic.

STEAMROLLLLL!!!!

It wouldn't even be difficult to bring Wintergrasp back up to snuff with modern content. All you'd have to do is upgrade the honor rewards to levels more like those rewarded in TB and upgrade the vehicles to level 85 (or 90) health pools and damage levels. Maybe even bring back WG commendations and have them reward MoP gear. I bet TB will still be played if the honor rewards remain high enough.

^^ This. Was one of my hopes that I posted on the PvP forum. I feel WG/TB should stay current. I also think there could be a max level bracket and a lower bracket. As far as it being instanced, I don't know. But I also think more than 5 people should be able to participate at a time. If the other side cannot field more, they need to figure out something more than having tenacity or penalizing the other faction. Making it relevant again would probably take care of having only the minimum participate.

This would be fantastic. I dearly miss Wintergrasp, as it was the battleground that got me into PvP in the first place. I had some fantastic matches there: a few instances of making a desperate, last-ditch defense at the vault's gate, some down-to-the-wire assaults, and plenty of instances of clever tactics that turned the battle around for us.

WG was what finally got me into PvP as well and I loved it, quickly getting all related achievements. I sometimes go back to roflstomp it in hopes of feeling the old magic but it just makes me sad.