From the last issue of the Mantic Journal:
"Early in 2012 you'll be able to add units of these horrors to your armies of Orcs, as we're releasing a 10-man metal box set of Goblins with spears."That does make it sound less likely that a whole armies worth of Goblins are planned for release. At least in the immediate future they sound more like a unit to add on to the orcs.
Too bad, cause even in Mantics colour text which precedes the above quote, it's stated that:
"Smaller, meaner, and altogether more numerous than Orcs..."Knowing how many Mantic plastic and restic Orcs I already have, there's no way Mantic Goblins will be outnumbering them in my army anytime soon if all I have to work with is the one release of metal Goblin spearmen.