So how massive the fall of combined HW sales will be for 8th gen?

[binary solo]

Zekkyou said:

A combination of the failure of Nintendo's home console, the shrinking handheld market and the movement of the "casual" market to mobile is responsible for a lot of the apparent shrinkage. That said, the core home console market will likely see some growth (relative to the length of the generation), as well as PC gaming becoming more popular.

In simple terms the largest chunk of that market reduction is due to Nintendo's current decline.

For the core on home consoles you have to go back to the 6th generation and the ~140 million in sales (not counting the millions PS2 sold between 2006 and 2013) it made, not the blue ocean inflated 260 million of the 7th generation, as the point from which the core base will grow. 8th gen will be very fortunate to make a combined 160 million for home consoles, which is about 15 million less than I'm predicting. My prediction is pretty much flatline compared to 6th gen.