Just stumbled across this in my travels.

Obviously this isn't "confirmed" as in "it's definitely coming out and here's a release date", but rather, simply confirmation that time and effort are being spent on it.

We also got confirmation that expansions are planned for the next two years, so even at the earliest, GW3 would likely be a 2027 thing, possibly with the second expansion in the current pipeline serving as a sort of link/segue.

Shifting gears for a moment, though...while there's a lot of room to steer the current story over 2 more expansions, I'm not sure there's much room left in the current lore for much of any real significant game. Maybe GW3 sees a prequel game? Maybe we actually participate in...you know...the Guild Wars?