Two weird things in this preview are Dick calling Damian "Damian" before he knows Gordon's unconscious. Though the moment of "Robin?" "Yeah?" "No, the OTHER Robin. Damian?" Though I wonder if Tim's answer is supposed to be Tim wanting to be Robin (which he does, canonically) or just that one would expect Red Robin to be called Robin for short. It seems weird to call him "Red" (especially given Jason's new haircolor) and "Red Robin" is kind of a mouthful in fast conversations.
But the worst is the freakin' grammatical error in another panel. I'm going to assume it's due to Dick's being seriously shook up at the Graysons.
I'm so glad Dick's getting rid of Damian for this. The return of the Drakes and Graysons is not a good opportunity for Damian's generic one-liners.
I love that Dick has his hand on Tim's shoulder there. Because a)he loves working with Tim as an equal partner and is glad to have him back for a while and b) Tim had a nasty shock. It's just a nice little visual gift there as they send Damian away, because they both know they're going into a fight that's different for them.