Since we're waiting, here's a pointless (or academic, either one) thread for ya:
If Moffat had wanted Jenna Coleman back, bring her back... as one of her splinters from Name of the Doctor! Preserve the original Clara's death in Last Christmas (maybe the greatest exit for a character Moffat had ever written) and also possibly explore the existence of these splinters. Also, by having her follow him, the Doctor also wonder if the Great Intelligence will figure into this... and he does!
So basically, the same series, with a splinter Clara, and no Hell Bent, instead replaced with an episode where the Great Intelligence is behind the Hybrid, having retroactively implanted it in the Doctor's mind since entering his time stream in order to confuse him and weaken him. No Gallifrey or Time Lords, naturally, just a big confrontation between the Doctor, Clara and the Great Intelligence - possibly played by Sir Ian McKellen himself again, in the flesh even!
If Moffat had wanted Jenna Coleman back, bring her back... as one of her splinters from Name of the Doctor! Preserve the original Clara's death in Last Christmas (maybe the greatest exit for a character Moffat had ever written) and also possibly explore the existence of these splinters. Also, by having her follow him, the Doctor also wonder if the Great Intelligence will figure into this... and he does!
So basically, the same series, with a splinter Clara, and no Hell Bent, instead replaced with an episode where the Great Intelligence is behind the Hybrid, having retroactively implanted it in the Doctor's mind since entering his time stream in order to confuse him and weaken him. No Gallifrey or Time Lords, naturally, just a big confrontation between the Doctor, Clara and the Great Intelligence - possibly played by Sir Ian McKellen himself again, in the flesh even!