Depends on what you consider hard information. If we believe the factory uncle, the changes to the back shell are just different pattern of indentations, probably for the kickstand. It COULD be almost anything and everything, but the likelihood of it being anything other than a Switch, which the rumours are pretty strong about it still being, is low, and certain additions would mean it would cease to be a Switch. Could the controls, layout, shape change? Maybe. I doubt it. It seems unlikely. But it's technically possible.