YouTube gaming have announced they are holding a question and answer session this Friday. It is scheduled for 10am Pacific time and is happening this Friday the 17th.
The key quotes are :-
Some key topics for our team we know that you’ve all been asking about include:
New Live Control Room and upcoming live features
Copyright for Gaming and Live streaming
Fan-Funded Monetization: (Super Chat, Super Stickers, Memberships)
The news in regards to Stadia is likely to be upcoming live features and with Crowd Play and Crowd Choice being announced for Dead by Daylight I would think this may be getting talked about then and how it will be implemented.