In an universe where the Nintendo Switch is mega successful and super mainstream, wii mainstream. Do you think that Sony and MS are going to emulate and make something similar and better?

MS technically has something like that. It's called a Surface

Its just costs more but also does more...

Well, Nintendo already copied a chinese tablet for the Switch, so why not?

Haha that title made me chuckle! Nice names xD.

To answer your question no. Ps4 is mega successful already so they will keep doing that.

always the Nintendo "didn't invent anything" comment has to pop up lol 

well yeah they could have the ps4 or ps5, but also a tablet device. After all sony is more about electronics and technology than nintendo.

We may see that coming with a new PS handled, but I don't see MS doing that, besides they already have surface and their Play anywhere policy

I guess Sony can bring back the PSP/PSP Go since they had that whole handheld to home console feature already. (Surprised they didnt do that for the Vita but rather made the PSTV)  

But I dont think MS will get into that.  They've had many talks about entering the handheld business.  If anything they might as well impliment it with their Surface Pro. 

well that's true, i have one. maybe something more gaming oriented.

I highly doubt it. Even if Switch is wildly successful, Sony and MS have much more different philosophies than Nintendo. And for them to try to tackle handheld/console hybrids without the IP that Nintendo has is suicide.