"What is new at the office?"
Translation:Що нового у офісі?
I'm assuming нового is accusative because it is talking about the new things in the office. Am I right?
It's Genitive, you can think of it as "What of new" is there? New here is kind of a noun even.
Oh btw, when are these lessons going to be on the main course? As of now you can only find these lessons for the Duolingo dashboard/school Ukrainian course
Oh, I'm not one of the administrators and I actually didn't really understand what you mean :) Which lessons? You mean, this particular sentence doesn't appear in any section of the tree and can only be found in the "Discussion" list?..
Nope! https://schools.duolingo.com/classroom/434240/curriculum Go all the way to the bottom and you'll see three lessons that aren't in the main course. Oh I made a Duolingo dashboard account for myself so that's why I have this :)