Given how slow the pegs are at the moment and the first couple of waves of the Black Series now would be a sensible time for some people to take a break. Nothing's been confirmed nor manufactured past Wave 4 (Dagobah Luke and Yoda, Toryn Farr, Snowspeeder Wedge) and we have yet to see any packaged samples and images of the fourth wave figures.
There was talk of somewhere around 55 total 3.75" figures for 2014 but at this point who knows. Hasbro can change plans at the drop of a hat. Not sure if that 55 number includes the reduced-articulation, cheaper figures or is just the premium collector characters.