It looks like their Bellevue office has closed with the staff working from home. The team notes that they’re going to continue to keep an eye on the situation as it evolves,
“We’ll continue to monitor efforts against the pandemic and follow guidance from the Centers for Disease Control and other experts. In the meantime, ArenaNet and NCSOFT employees are working together to ensure everyone has what they need to continue development and manage releases while the team works remotely. We’re making steady progress on all our planned Guild Wars 2 releases, and we’ll keep everyone up to date if that changes.”
The statement concludes, thanking the community for their support. In case you missed it, the team discussed a new feature, dubbed Legendary Armory, coming to Guild Wars 2 and how this will impact binding legendary items.