Additionally, they're planning to let us queue up for the BGs from anywhere in the world (which, no doubt, would increase participation from both factions), and Tigole also suggests that eventually they may offer XP through battlegrounds, giving players yet another way to level up (twinks may not like that suggestion, but these changes are a long way off anyway).
This last change there -- offering players a way to level up with PvP -- is seen by many forumgoers as a direct stab at Warhammer Online. That game makes a big deal out of offering battleground-style PvP, and letting players choose it as a way to completely avoid PvE and earn XP and levels. So it may be that Blizzard saw their launch, and plans to turn back in that direction to compete. Which isn't a bad thing for us anyway -- as good as WoW is, some slightly-more-serious competition will only make it better. Being as I'm a BG fan, Tigole's hints that BGs are coming back is music to my ears.