I started thinking about this, and I really have to say the current specification is fairly good.
LPS screen is really the only thing I am missing on the HW side, and maybe LTE modem functionality, even as 3G is pretty much OK for now.

So, my wish list is pretty short for the new device: just LPS with OLED screen, and current connectivity modem chip set (whatever it will be at that time...)

Otherwise I am happy with the CPU, RAM, storage, display size, all is OK in the device.

As long as SW is being actively updated and remains hackable, I am satisfied