I thought the split season worked out perfectly fine for Series 6, with the overall arc of the Silence and the Doctor's death.
I think the problem with Series 7 had more to do with keeping the Ponds around too long and the somewhat lackluster stories that were written. And the fact none of it really seemed to flow that well.
In any case, I think it'll be good to see another full season again. Hopefully it'll also see Capaldi's Doctor taking Clara on one long adventure again. I'm really getting tired of her going on these little "day trips" in the TARDIS and then popping back to her house at the end of every episode.