I'm excited to report that on my way to work this morning I noticed new signage installed in the former M3 location for Tenoch Mexican.
They were going to move into the former Kickass Cupcakes location but apparently just recently decided to take the larger M3 space on the other end of the building:
http://boston.eater.com/2015/5/19/8624473/tenoch-davis-square-somerville-m3 Here's hoping for a quick and smooth construction process.