I can't see Nintendo stopping 3DS production for a long time. It's good money and can even see new special editions coming out but as for development they will want to move to Switch. However really that is up to the consumer if the Switch has a slow start and its clear that people actually want a more dedicated smaller Switch compatible portable with longer battery life or home users want a dedicated switch set top box with a pro controller at a more reasonable price and the original Switch just has too small a market share then it won't work. I think its the right policy though for Nintendo to focus on one software platform but the current Switch is just awful as a portable and home console due to pricing.
Trying to sell a device only capable of mobile performance with premium software pricing is going to be very difficult though. I don't think people realise what a struggle this will be. I'm expecting it to fail to be honest but I think software quality will dictate this. Again 2 months from now we will get a good picture about how this is going to go. Android and IOS devices are also delivering 360/PS3 level performance for their latest games and at much lower pricing and many publishers may start bringing their classic 360/PS3 games to android and ios too. Many such games from the ps2/xbox era have been available for some time.
It's going to be interesting to see what happens and being a Nintendo game fan I hope Nintendo succeeds but I really don't like the Switch hardware and hoping for something better later like a set top box running the same games. I don't want to switch I just want to play Mario Odyssey.
