That just epic fail not liking Zaraki entering the fray. I was hoping that Kenpachi would show up, that was the one thing that could make this arc better; and there's no way that he'd turn down that kind of fun.
It makes a lot more sense for someone to come help Ichigo out than for Inoue to suddenly and without any precedent actually be a decent fighter. She's got the power of god, but every time she's used tsubaki except for his debut he's gotten fucked up; she's not a fighter, hell they already explained as much a while back in the manga.
She'll get her chance, but it's not likely to be an actual fight, more likely a god-off with Aizen or when she rejects the Hougenkyou or whatever that thing is called.