lineage 1 was released october 27, 2009. 2 and 3 on the november 13, 4 days before ac2 was released in north america. first teased/announced on e3 2009 & sdcc 2009.
ascendance came out alongside acb. first revealed/teased june, 2010
embers at the same time as revelations (although there was a premiere of it in montreal). first revealed june, 2011.
seeing june is just around the corner, we might be hearing something about this soon. alongside the ac3 ubiworkshop edition. probably an added goodie for that.