There really aren't any timers for WG, other than the time to next game and time left in current game, which are already shown in the WSAUF.
You could maybe do an overview of the POIs I suppose. For the four workshops, color them by controlling faction. For the keep towers and southern towers, color them by the controlling faction and then maybe grey when they're destroyed? If you really want to get fancy you could even add when the various courtyards are breached by monitoring which walls are destroyed. Or pick and choose which parts of this might really be useful to players. I tend to play WG with the battleground map open for most of this information.
NW Keep Tower Alliance Vehicles NE Keep Tower
SW Keep Tower Horde Vehicles SE Keep Tower
West Courtyard Time Remaining East Courtyard
Broken Temple South Courtyard Sunken Ring
Shadowsight Winter's Edge Flamewatch