It is possible. I believe the Switch will outsell 3DS + Wii U sales. So Nintendo will go up. I am not as sure for Sony. PS5 will have to do Vita + PS4 sales. I do expect PS5 to do better than PS4 but not that much. I think Sony will do the same or a small rise. Microsoft will do worse no doubt. Xbox 4 will not sell.
So overall sales will probably be the same or a small rise. So I say yes 9th gen might outsell 8th gen.








