The Transformers Collectors Club have been posting on Twitter, suggesting that the upcoming Collectors Club subscription figures Nacelle and Generation 2 Starscream will be the final two times that they make use of the mold:
From 2007-2015, we have provided 10 of the 31 versions of this now truly “classic” mold. Nacelle and G2 Starscream seem a fitting end.When TFSS 3.0 G2 Starscream ships, that may well be the final use of this mold. We have no future plans to use the Classics mold again.
You’ll note that, like when this was originally mooted at Botcon 2014 in California, there’s a certain level of “not completely ruling it out” in the statements, but as it stands, it seems like with the 30th and 31st releases of the mold in the form of Nacelle and Generation 2 Starscream, the Collector’s Club is retiring the use of the mold.