it would increase PPS simply b/c it shows stability and a solid long-term outlook for the company, and the public views it as such.
Before a stock can uplist, there is a strict set of guidelines that must be followed first, some of which take some time to occur. Now certain rules can be twisted (if they merge with a company, or buy out a failing company currently listed on the big boards already), so it's tough to give an exact timeline and could be sooner or later depending on the company's success.
Either way, I have no doubt in my mind that management will do what is best for the company, and that includes the shareholders. After all, the CEO is a huge holder here, so all interests are aligned :)