if that was the case they wouldn't even need to release a new switch. just a new dock. sold seperately of course. it just wouldn't be nintendo if the hardware didn't have a massive mark-up compared to what you get from sony/ms.Does the current switch have the ports to support that?
Also a few upgrades internally could help keep the rest of the switch from being a bottleneck.
Nintendo has had so much success with their blue ocean strategy. If people are willing to pay the price, why would they stop?