Freenas has been released in version 8.0.4-p2, so there is another version before Freenas 8.2, which brings plugin support. The update released yesterday fixes a security hole in Samba (CVE-2012-2011) and brings the CIFS server to version 3.6.5. The update is easy to do, you only need the corresponding file from Download Sourceforge and import it via the Freenas interface.
Who on minidlna and therefore Freenas 8.0.4 Multimedia must also use the corresponding updates, which are also available. Now the only question is: when will Freenas 8.2 be released - plugins are something that private users in particular should eagerly expect, even if this has not been the direct focus of Freenas developers so far.