Better also include Alienware x16 (models with vapor chamber) in the source of a hybrid for acceptable keyboard layout, mechanical keyboard, very good cooling (but easily accessible fan screws of all four fans) and so possible low noise operation under load. Furthermore, non-US mechnical keyboard layouts must immediately hit the markets and non-US prices must agree to US prices (after currency conversion and tax).
The mobile workstation has already done all the hard work to pave the way for a potential XPS 16. Its design and AC adapter would translate perfectly into a 16-inch XPS model if we are to ever see more options in the XPS series.