Actually, they first said start of this year that Guild Wars would be pushed back a few days to make sure it works well with the PvP update. Then, after several weeks of community inquiries met with radio silence, they eventually admitted it never had a chance of working, needs to be redesigned from scratch, for which they are looking for community feedback. That’s the last we heard of it, for all we know they are still collecting feedback and will eventually start with the redesign.
Full thread is here: