With Xbox seeming to be on the backfoot and overall pretty low competition in the industry as a whole, I think it's worth speculating which company will be the next to enter the game console industry.
Personally, I believe the following companies could (could) create a games console and have a motivation to, from most to least likely:
Samsung
Capcom
Sega
Personally, I believe the following companies could (could) create a games console and have a motivation to, from most to least likely:
Samsung
Capcom
Sega