So... I noticed that the last big update that Spiral Knight's received was in 2017. This was the Starlight Cradle Update, in which new mobs, armors, weapons, etc. were released. This just made me wonder, is Grey Haven's possibly planning on releasing a small update for Spiral Knights, maybe once every year?
Many companies like to "under-promise and over-deliver", so as not to disappoint their customers. As far as I can tell, Grey Havens implements this strategy by promising nothing at all and then occasionally giving us updates out of the blue.
So, whether you agree with that strategy or not, don't expect Grey Havens to talk a lot about upcoming updates. (And the players on this forum don't know any more about upcoming updates than you do.)