People are really taking the handheld politics serious. LUL.
It's as if you're all too young to remember when the DS launched and Nintendo insisting it wasn't replacing the GBA or ending the Gameboy line.
Nintendo is just leaving their options open if the Switch fails, nothing to see here. The fact the Switch is getting a Fire Emblem main line game in 2018 says it all, the gamecube and Wii Fire Emblems where straight up bombs and Nintendo would never develop a home console FE game again if it wasn't intended to be a handheld game as well.
Nintendo is still trying to manufacture and sell the N3DS, they're not going to admit the Switch means to replace it any time soon. Expecting them to is laughable.