I guess the only way to know is to actually email him
By the way, how about putting a timer on the project's website? You know, like the one for Persona 3: FES not too long ago on official Atlus website. The timer would count the time to the final deadline and after that moment is reached, the estimated time remaining to the actual release (that way people will hopefully wait in anticipation for a release that may or may not be released at the given time, instead of asking "is it out yet mengz?")