Even with the OVA included, at least, that'd still mean we have four episodes left (or five). Still plenty of time left before we receive word on this show's replacement.
I guess I missed the OVA episode, because I don't remember it.
From what I've heard about it from people I usually tend to agree with, this is the best arc in the series. Tons of character development, fights, and interactions are happening in the next arc.
It's comparable to the York New City arc, but longer.