...shouldn't that be "The Death of Doctor Who"?
Crowds of People Under Alien Influence: No, though apparently there are crowds of ex-companions running charities around the world. And getting married.
Tie-in with Doctor Who (and, not incidentally, Faction Paradox) story: UNIT claiming to have the Doctor's corpse in a lead coffin? Where are Lawrence Miles' royalties? Meanwhile, every single bit of Doctor Who books continuity regarding the future lives of the companions gets rogered bar one (namely, that Ian and Barbara got married).
Rani's Mum is Annoying/Is Absent: The latter, though her husband reveals that she even does grief annoyingly.
Luke/K9 Cameo: Luke gets another quick Skyping session, though where is K9? Possibly on the top of the kebab van in St Giles' Road, sporting a traffic cone on his head....
Sarah Jane Waxes Maudlin: In pretty much every scene she's in.
Mobile Phone as Plot Device: No. Has everyone on the series suddenly had a personality change? Because this sudden wave of off-grid living is weirding me out.
Racism Towards Aliens: Rani, for once, calls Sarah Jane on her knee-jerk "you can't trust them!" reaction towards the giant space vultures, though unfortunately it does have to turn out that Sarah Jane was right and you can't, in fact, trust them (though this season's face-saver comes in a brief mention at the end that these vultures aren't remotely representative of their species as a whole, no sir). Clyde also gets called on his racism against the Groske, though this doesn't seem to have the slightest impact on him, and he's decidedly ungrateful when one of them saves his life.
The Crimes of Sarah Jane: None, though the kids' forays through the air ducts probably constitutes breaking curfew or something.
Sonic Lipstick: Gets a good outing in episode two. Jo allows as how she'd rather like one of those.
Wristwatch Scanner: by contrast, doesn't appear at all.
One or More of Sarah's Companions Falling Under Alien Influence: Poor old Clyde finds himself as a conduit for the Doctor, a mere episode after having to do similar for Androvax.
Sarah And/Or Companion Acts like a Selfish Cow: When Jo Grant turns up, it seems at first that we've got an ex-companion who's actually well-adjusted and unselfish... until she and Sarah start comparing notes on their past experiences with the Doctor and the jealous-off begins. Sarah, meanwhile, decides to interrupt Jo's moment of bonding and reminiscing with the Doctor in episode 2 by blowing a whistle and telling them to get back to work. There may be dozens of ex-companions doing good works out there, but they're undoubtedly all bitter and twisted despite it. Clyde also gets a good bit of jealousy when he discovers that Luke has a new best friend forever. And both Clyde and Rani pass the selfishness meme on to Santiago by encouraging him to tell his parents to stop working to help other people and start paying attention to HIM, GODDAMNIT, even though he's getting perfectly good parenting from a loving grandmother.