Oh hey, there’s a thread here!
So, this thread got a little long, but the salient point of what I said there:
Rearrange the GPIO pinout to match (as closely as possible, function-for-function) that of a certain fruit-named board, including some mounting holes in the same places relative to the forest. That would allow lots of accessories meant for one to be used on the other without jumper wires, assuming some common features matched up on the same pins.
Also possibly fancier power circuitry. Taking a 3.7v lithium bank, boosting it up to 5v for a few inches of USB cable, then bucking it back down to the voltages used on the board, seems wasteful. It’s perfectly sensible for simplicity’s sake and failure isolation, but if some future version could include native lipo support (isn’t the A13 usually found in tablets anyway?) with arbitrary-voltage input for direct connection of solar or vehicle power, that would be super sweet. Seems like a lot of work, though.