Grain of salt, but it’s been in development for years. There’s a Swedish online shop (Komplett) that’s listing the game being available on 09/30/2017; is it true? Dunno. I’m not going to pretend that I know whether Komplett is a reliable site or not. And neither am I going to pretend that I don’t want Cyberpunk 2077 to come out already, either.
Screenshot in case the link gets changed. Also: I don’t know who originally came up with the report that later got swarmed by all the traffic-bots, sorry.
Not impossible, but I would say unlikely given that Cyberpunk sounds even more ambitious than Witcher 3 and CDPR doesn’t want to sour the goodwill and legion of new fans that Witcher 3 gave them. I would expect 2018. Unless, of course, they show up at an E3 press conference and show Cyberpunk off, in which case I’d say hang on to your hats.