Google’s Gary Illyes said over the weekend on Twitter that a Google “Penguin refresh is months away.”
The last official Penguin update we had was Penguin 3.0, which took place on October 18, 2014 or almost 9-months ago. The last time we saw a shift with the Penguin algorithm was before December 11, 2014, which was over 7-months ago.
So realistically, even though Google has said time and time again, that they will be making Penguin run faster – we are likely not to see a Penguin refresh for a while. Maybe it will take over a year like we saw between Penguin 2.1 on October 4, 2013 and Penguin 3.0 on October 18, 2014. Before that, Penguin 2.0 on May 24, 2012 and the original Penguin release on April 24, 2012.
At this rate, I suspect Penguin won’t happen for a year or so after Penguin 3.0.