Ignore the printing room thing, that date is getting random outcomes. It is not mentioned in EE profile, people are getting that info by emailing/phone. Nobody really knows the real process behind-the-scenes now CIC is printing COPRs, some from July are waiting (in printing room) and some from August got back their passport with COPR already. Only thing to hope for is that it is taking 3-5 weeks, only worry after 5 weeks are past.
CIC will likely get a lot of complains about keeping people's passports for so long, they might start delaying PPR emails and asking for PP only when they are ready to print and return back. It is really a hassle if they keep people's passports for more than a month just to print a visa.