Challenges and decisions ahead!
So, a few weeks ago Pycom announced this-
Aside from the implications this has for the case (eeeek!!!!) this may have positive ramifications. Firstly, it looks like an RTC will be onboard. Secondly (and I'm really hoping) the tetchy (technical term) IO expander will be sorted. Thirdly, we could change up a gear and fit the more powerful PN532 NFC reader. There's already a circuit python library available so it won't take much to adapt it to micropython.
Watch this space.... I really hope it fits in the current casing though....