A TV Switch or Switch-only homeconsole is something I honestly don't see it coming. My guess would be that rumored "Switch Pro", similar to the New 3DS, with better overall performance and some noticeable upgrades, but not enough to be consider as a successor.
I actually see it coming. If Ninty can somehow integrate the account system to where you can go from one console to another and pick up where you left off due to cloud saves, then they can have a TV switch that is overclocked compared to the rest and delivers better TV graphics. Then people with lite can buy both for $350-$400 with the TV switch being $150-$200 and that way pay more but have a better experience in TV mode. Imo, that would be a nice addition to the switch family since it is a family and not a console.
Just a guy who doesn't want to be bored. Also