You guys seem to not realise that CDP is creating this game and expecting it to be MUCH more successfull than Witcher 3.
Wild Hunt sold almost 10 mln copies first year and 20+ mln up to date. It was done with only 40 mln consoles base in 2015, when game launched.
Right now they are using RDR 2 as benchmark: 23 mln units in the first quarter.
When C2077 arrives, the console base will be around 160 mln and it has huge advantage over RDR, with its PC launch. You should probably knew that Steam users count is much bigger than i 2015 as well.
Preorders for Cyberpunk have already started and the numbers are significantly bigger that W3 ones. You should be expecting a couple millions of preorders right before next year's premiere.