Changing the name of the guild was discussed before when we split between WOW and EQ2. I still stand by my original stance that changing the name creates seperation. Seperation will eventually lead to feelings of seperation which is not something I will personally promote. Retaining the name builds a since of belonging to a bigger picture. Which will add to the comfort of new memebrs. Changing the name may make them feel like the red headed step child.
Now I know I am not playing Vanguard, so I technically don't have a right to say "ya" or "nae". But I thought I'd just throw some thoughts out there.