I just bought this version (with the i5) and was wondering the exact same thing. I don't think the new one had any major changes to the hardware and the plugs should be the same right? So buying the newer PSU should allow us to install a micro gtx 1070 or the like. But I don't know if there are other hardware changes that could make it impossible.
I like how much this computer feels like a console. It's so small and very quiet. But I was hoping it could retain some upgrade potential as a PC. I haven't seen much anywhere regarding it. I was hoping for a thorough review somewhere.