The posts show a honeycomb cylinder with a note and SD cards inside that was sent by a fan to Funcom. The note reads, "To unlock the truths of the void, one must offset themselfs [sic] from the tenements [sic] of known reality." On the SD cards were very small files with a few letters and numbers in each.
The studio made the files public, and the players have responded by investigating what appears to be a community-led ARG. If a Massively reader can crack the code, make sure to share with the entire class!
[Update: This was sent in by a fan, not the developers. Made changes to the story accordingly.]
[Thanks to Ehra for the tip!]