The last teaser looked fairly good, Doctor popping up out of nowhere (again), but are the effects designers for Star Wars, Star Trek, and Doctor Who cribbing each others' notes?
Predictions:
* At least one companion is converted into a Cyberman (again), though this time it's probably to boost their ranks. If not Graham and/or Ryan, then it might be Yaz, since "Cyberwoman" was the pinnacle of early Torchwood classics and all... all three of them - that's real big, right?
* The Doctor gave the Lone Cyberman what it wanted, so expect something big (or lukewarm as it's at the tail end of some Cyberwar)... and also placed at the end of human existence (again)
* The Doctor makes a bunch of jokes so awful that even Tennant and Smith would blush in embarrassment (again) - then again, the teaser already going there with a really bad one
* "Ascension" - might involve mind-altering drugs as metaphor. The term also means to rise up... into the sky with angels harping since this is the end of the great cyberwar (and no previous ones, like the one attempted in the 26th century)... I hope they don't use those stupid Robby Rocketfoot ankle-strapped jetpacks again...
* The sonic magic wand is used and, if for no other reasons, a whole regimen of them will stomp the other way (again). Actually, I predict it will be used 7 times. And how come more college frats aren't turning Doctor Who into a drinking game? One chug every time the thing is whipped out... probably because they'd all go red eye and pass out well within 30 minutes, and no free pizza afterward...
* Doctor Ruth's explanation, assuming she even returns, will be a downer and not because it won't affect existing continuity since "An Unearthly Child" (or a dumb one, meaning she's the Master, who - to top that - is really the Doctor's identical sibling... though given the 13th Doctor tells Doctor Ruth among other things the real Doctor doesn't use weapons and there are plenty of times previous incarnations clearly had done...) - I'd prefer something that isn't a downer, or even Jodie regenerating into Jo and then the script writing team regenerates too - but that won't happen...