Word from the latest White Dwarf is a new Chimera and Basilisk kit are on the way around March. They are part of the minis being released alongside the upcoming Missions Book. Based on the pic released by Games Workshop earlier, these kits will have the updated Chimera sides already seen in the new Hellhound kit.
~Apparently the IG 2nd wave is headed our way. The big question is whether that Basilisk kit is a new-style hybrid kit allowing all of the artillery options in the codex, or just a straight bassie?