After a member of the Guild Wars 2 team expressly said they wouldn't ever be building expansions, and a bunch of people got upset, another developer has taken to the forums to "clarify" (backtrack, or just flat out confuse the situation). There might be expansions for Guild Wars 2 in the future. Or there might not.
They're not sure. In fact, they're so not sure they have nothing to say at this time. Except what they'd already said. Which wasn't true.
Confused? This is just run-of-the-mill PR.