Hoping on this date because we already passed two misadventure after new update announcement so I hope they can’t just give info about the 1.1.9.0 in three Grim Misadventure thread in a row. They should start announcing info about more future ideas/projects/updates so to determine that they should be finished/almost finished the expected update. But it all can be my imagination 
Also I know some people are already in Beta testing so… 
Or; (stricktly dangerous!!!)
The 1.1.9.0 Patch will be the last major update of GD so they want/try to add/balance/shape everything they want to fix that’s why it takes too long and the next Grim Misadventure will be a goodbye post and we’ll gonna cry etc. I certainly don’t want to think about this so I decide to be positive person once in my life in this rare occasion.