Would you prefer 3DS to get its own successor instead of switch being its successor? advantages and disvantages? Do you like XDS fan concept?

[SonytendoAmiibo]

What is the sense of keeping the 3DS going once the switch hits the market.The whole point of the Switch is to unify Nintendo's game development to ONE system. Nintendo would have to support two totally different pieces of hardware and gain no advantage. #KILLthe3DS.