The Devs are absolutely working on Starfinder content. Their
goal is to release products (both new and backlist titles) on a regular
basis. As a part of their licensing agreement, they can’t reveal
specifics until they're closer to completion and with the agreement of
the license-holder (in this case Paizo Publishing). They will make those announcements here on the forums, as well as the blog , twitter , and via their mailing list (if you’re not signed up for that, you can join here ).