From what I heard the v2 (which would be called Ya NanoNote) lacks funding and is far into the future. Most efforts currently seem to be concentrated on the M1
http://en.qi-hardware.com/wiki/Milkymist_One , which may become the basis for any future NanoNotes. That'd imply the SoC moving to an open-source implementation (FPGA? ASIC?), too.