Last Gen Sold 280m Consoles. How much will this gen sell? Predictions

[Ryng]

Around 140,000,000. Total 8 gen < PlayStation 2

PS4: 90,000,000
XBO: 30,000,000
WiiU: 20,000,000

 

 

Also, last gen was:

Wii: 100,000,000
XB360: 90,000,000
PS3: 90,000,000

So, is 280,000,000, not 290,000,0000...