You've been reading too much SH. :) A PP at this stage before announcing milestones makes zero sense. It has been "walked down" simply because of warrants being exercised, combined with low summer volume and lack of news.
The whole point of a PP is to ensure the NASDAQ bankers who will doing roadshows and sponsoring our listing have an equity stake. That PP needs to happen at much higher levels so that the minimum NASDAQ listing requirements are met and held.
The only other PP possibility is an industry partner, but again I don't see that happening at this level.
With new silicon valley management on board, there is zero chance of Canadian funds/bankers/hangers on getting in on any future PP.