Just went into the codex and spotted these three lovelies
1.: http://i.imgur.com/ttA2QEk.jpg
2.:http://i.imgur.com/5xBkYFF.jpg
3.:http://i.imgur.com/yxdG7rA.jpg
The claw weapons are named Furax so they might be a rewamp for that weapon but i hope it's going to be a new weapon.