The street date on the Star Wars Black Series is the 15th of August so they should be appearing next week.
I recently contacted Playmates and Paula Billingsley replied to me with an upbeat email about how they have no plans for Star Trek at this time but never say never.
I also contacted Hasbro UK who were slightly short with me telling me that Kre-o is all that's planned for Star Trek.
I think contacting Hasbro via their Facebook page is perhaps one way, writing them email's, letters and ringing customer services etc... However I'd say contacting CBS Consumer Products and Paramount may prove to be more fruitful as they are the one's that own the licensing for Star Trek both old and new. Not promising anything but I did contact CBS Consumer Products in 2009 and asked that they consider Hasbro to hold the Star Trek license.