Dagna: Hmm...but if you tie a slice of buttered toast to a cat--
Sera: You're daft.
Two hours later:
Public Safety officer: Miss, care to explain why you were found in the engineering building after hours with a toaster, memory foam, and your PI's cat?
Dagna: ...science?
oh man, speaking of Sera.
Imagine, young!Solas teaching his first undergraduate class as a grad student. Imagine now, if you may, if
Sera was in that class. Imagine Sera, feet on the table, chewing noisily - be it gum, or crisps, or maybe just her lunch because screw this class, eyes rolling
exaggeratedly when she's asked what she thinks of Gisharel's interpretation of 19th century elven history (it's required credit class of some kind, she wouldn't choose to be there) and she simply goes: "well, he's full of sh*t, yeah?"
[beat]
And she's completely right too. He
is full of sh*t - he puts too much weight on particular sources and shuts down a whole plethora of interpretations by ignoring others, privileging a romanticised look at history which simply isn't true.
I mean, I'm not even sure if he'd be
capable of hating her since she is possibly as insufferable as he was at the same age, even if she manages to be so in a completely different way. He later discovers that despite appearances, she also tops her class in chemistry (tempest specialisation, of course). She's not only a brat, but a
precocious brat.
I can imagine Viv cooking about as well as I can imagine her adopting a kitten. Which is to say, 404 brain error.
OK, now I need more of the cast to be in this grad student AU. Varric was Dorian and Solas's RA back in undergrad. He didn't stick around for his MFA, because who needs that when you're raking in money writing crime serials and terrible romances? Occasionally he invites them over for dinner because 1) they need to eat like civilized people once a month and 2) he subjects Bartrand to a pair of precocious, wayward manchildren 
And omg DAGNA. Dagna, the star of the engineering school, who has scholarships coming out of her ears but can't keep from lighting her own apartment on fire. Who's basically like the guys who founded the Jet Propulsion Laboratory, except short and adorable. Her poor PI's given her separate lab space so he doesn't have to deal with the headache from health and safety.
DAGNA yes dagna would be incredible.
I just need more dagna and sera/dagna in my life to be honest.
Hm, other people?
Bull would definitely be the sort of guy you bump into honestly thinking, 'oh yeah, bet he's on the football team' but it turns out he's a grad student studying something
really intellectually demanding and he's damn good at it too, like maybe medicine, or law (I can only see Bull doing something applied or practical to be honest), and somehow manages to juggle that, several sports clubs or societies,
and have an awesome social life on top of that, and makes it look effortless. Definitely a work-hard play-hard kind of guy. I wouldn't be surprised if it turned out he did his bachelor's degree at a really elite institution or something.
I can also envision Cole as this super shy first year who barely squeaks and Sera teases him mercilessly all the time (they probably live next to each other or something).