No idea what a stadia is but from the sounds of it I guess it's a total collapse and destruction of life
Basically, you put the game on a cloud server, and then you can deliver it to basically any device over the internet.
Besides the obvious engineering problems, this wouldn't do anything to the
games (which is what Stadia platform has to deliver.) And there's the problem that people will still have personal computing devices (how are they going to access stadia?) and its way easier to just make the consumer pay for computation than a google server farm and then transmit it. It's not like a service such as stadia would be free. A gaming class video card can produce more throughput than a home internet connection. I'm sure google's project will
function but I doubt it will
succeed. Again, the business plan isn't announced and the fundamentals just don't make sense. People
hate "always online" SP games.
Anyways. I don't think they will do another xpac. It takes them about 3 years to go from last xpac to new civ game (2007-2010; 2013-2016). That's a huge capital sink with no revenue for 3 years. If it were me making the financial case, I would happily extend that cycle 1 year and push out 10-20$ of DLC to fund the development of civ7. Civ6 dlc at this point (civs/leaders/scenarios) is much cheaper to produce per revenue dollar than the work for civ7 (new engine, gotta make new game building tools in the software, then you gotta make the actual game!)
Example: Release George Washington alt leader (extra points if on July 4.)
Pay a voice actor a few grand and have ed scribble some new ability down on a napkin, boom, done. Repeat with 2-4 other alt leaders and you have yourself a $5 dlc that will make you
millions.