I hope CDPR will not waste time on MMO. These things just does not work.
I may be not qualified for the subject, as I dislike multiplayers in general. If I hear, ever again, someone lecturing me about "damage per second" I am going to scream.
The only multi I was able to manage, for some time, was one of the mods for Freelancer. And I still ended up hating it. They created some very interesting solar systems, but it was impossible to explore most of it, I was constanly chased away, because half of the systems belonged to someone, and as they were not NPCs, you simply could not fight them away.
For some time I have tried joining one group, but I was geting sick of having to guard the clan systems.
Then, there was some time when it was made possible to equip "no RP" badge ,that should make player-killers to leave you alone. But old timers kept whining, appearently just fighting each other, without harasing everyone who logged in, was very boring. So the "no RP" badge got removed.
I can imagine a multi that is enjoable, but 10 years time period is way too short. Maybe after 50 years it would be possible, but 150 is more realistic estimation.