Between the help wanted ads over the past year or so, the recent balance changes for GW2 when we aren't getting more major DLC so it indicates testing for a future game, the new tournaments for GW2, and the recent buzz on Justin Wiebe's twitter page and some Youtubers, I would say the chance of a new GW game is almost certain.
I certainly plan on getting on it as I love GW1 and GW2 and have posted some suggestions and requests on this forum over time. I prefer this game over even big names like Overwatch and TF2 even with those games doing a better job on certain aspects but none of them have a talking crown (and it says a LOT of stuff), one of my favorite IPs ever (PvZ), and the community isn't as nasty as Overwatch's which helps a lot.
