From this month’s Newtype:

[EDIT] New, longer summary of ep 11 (skipping 12 because it’s just a repeat of the last summary). Ribbons, you bastard:

Episode 11: Double O’s Voice
O-Raiser, the support unit of the OO Gundam which Setsuna pilots. When this unit docks with OO Gundam it can increase OO’s mobility and fighting strength. By the hands of Ian and the other mechanics of Celestial Being, the O-Raiser’s tuning had been progressing. But, at the same time, the A-Laws’ dreadful, newly-obtained unit begins operation. Ribbons and the A-Laws side smile at the scene in which, through an attack utilizing that immense power, countless lives are lost. Tieria, who was thinking that they can’t wait any longer because of the [A-Laws]‘ inhuman acts, reveals the existence of the Innovators, which he had hidden up until now, to his comrades. 

Episode 13: Battle to Capture the Memento Mori
Kataron begins an attack on the satellite weapon of the A-Laws who lead the space fleet, Memento Mori. However, there they face the A-Laws elite unit. And so while Kataron joins forces under Setsuna’s command, the Innovator, Bring approaches in his MS. The truth is, that is a ploy to bait Setsuna.

Anew Returner, Bring Stabity, Garazzo, GN-Archer, O-Raiser and OO-Raiser info:

Aryuu[sic] Returner:
A new member who was scouted by Wang. She is an authority on space engineering, MS engineering, and regenerative medicine and beautiful on top of it. Even though she has duties at Lagrange 3, she joins the Ptolemy crew to provide maintenance for the O-Raiser and GN-Archer. (note: name’s typo’d, should be Anew, leaving it because that’s what the page actually says, but they call her Anew in another blurb so I’m going with typo)

GN-Archer
Ian’s wife, Linda, who is a development-engineer (sorry, not too sure about this term), and Anew announce Gundam Arios’ support unit, which connects in the back during transformation, along with the O-Raiser. During a difficult hard fight with a powerful enemy MS will this be Celestial Being’s [only] salvation!?

Arios’ support unit also arrives on the front lines!
Continuing [in the same vein as] the O-Raiser, Arios’ support mecha also makes it’s debut.  Seeing the similarity to O-Raiser in the nose*, you can imagine that they were developed at the same time. It’s the unit Arios will join forces with, but who will be the pilot?

(* nose as in ‘nose of a plane’)

Garazzo
A new unit announced along with the Gadessa. [Built] for outstanding mobility, [such that] it’s implementation of ultra-fast movement undermines the common sense of MS [development]. As a melee type [unit], both arms are equipped with five claws, the unit can also produce a GN-field in order to shield allies.

Bring Stabity
The burden of the two Innovators attached to the A-Laws is to keep their mouths shut and emotions below the surface. Upon joining his unit, just after his debut the Garazzo approaches Ptolemy. He overwhelms OO Gundam which had gone to ambush him. 

O-Raiser
In order to support OO Gundam in combat, Celestial being developed this unit in absolute secrecy. It is capable of combat independently, as a support unit it regulates the Twin Drive, it also has the capability of amplifying Trans-am.

[EDIT]

OO-Raiser
Too many verbs were cut off from the photo of the page to translate properly, but just a brief rundown of what was in the blurb: OO-Raiser is NOT another version of the O-Raiser, it’s just the name of OO + O-Raiser’s combined form. It mentions the O-Raiser’s Trans-am amplification capacity again and then goes into technobabble about GN particle production.