tedster - 9:39 pm on Oct 4, 2012 (gmt 0)
Hello ArgentAspis - and welcome to the forums.
The two most recent PR Updates reported by our members are 20 July 2012 [webmasterworld.com] and 3 May 2012 [webmasterworld.com] Google averages about four principle PageRank updates in a year, sometimes following it with a few small tweaks and corrections. However, the pattern can be quite irregular and not too predictable. However, with under 3 months since the last one, it is far form overdue right now.
PR Updates have also become pretty much of a "non-event" among our members, because they understand that actual PR is already updated on a nearly daily basis so exporting the data to the toolbar doesn't really mean much except to those selling advertising. In those cases, a higher PR can mean a better rate for some.