Better color accuacy screen option
Higher sensativity pen (I know we dont even hsve access to the current stylus but 8192 levels of preasure sensativity feels great)
More effecient chip archectecture for better battery life (the current choice generation is infamously power hungry)
Backlit keyboard option
Usb4 for at least 1 port
Camm memory would also be nice if we are stivking to single channel memory