JimmyFantasy on 20 December 2018
The answer to this is quite simple in my opinion.
We need to think about the nature of the switch and the actual context.
Being it an hybrid console, we have to see it from two point of view.
Switch is an handheld console, absolutely a successor to the 3ds which makes it the next portable gen.
However, as an home console it still compete with the same competitor consoles the Wii U did, so it is in the same gen 8th.
The successor of the switch will be same gen as ps5 and xbox 4 as an home console, and next gen portable.
