If one toon dies, you can ressurrect, if your class has that feature.
If not, you can suicide and try to have them all die, so they rez in the same place.

If you're in Alterac Valley, you can use the Insignia to regoup outside of your General.

Otherwise, you can have your team head towards the graveyard where your toon will Rez.
And/or have that toon auto run towards your team.
Either of these options suck, but they're the best option in a bad situation.