A TV model is *possible*, especially after the Lite, but it also makes less business sense then a Lite. The Lite serves to fill the void left by the 3DS with a smaller, cheaper, more portable experience, and most Switch users who dont use Switch in both docked and portable modes use it exclusively as a portable. That said, definitely a market for it, and I dont think a $150 price tag is an impossibility.
A Switch Pro, targeted towards the gaming enthusiast, is definitely the most likely new SKU. A larger 1080p screen that removes the bezel, some 2K/4K support, same joycons and dock, all for a $400 price tag. They could even sell the tablet stand alone for a cheaper price.
A Switch XL is impractical, given theyd have to make new joycons and docks to go with it.