Thanks Macole, Acadian!
Whiterun is taking shape - I've been making interiors and people who live there (playing god again). Whiterun is a big town, it has 23 houses, a chapel, a meadhall (Jorrvaskr) and of course Dragonsreach which is a massive castle. Those Breton houses are all large multi-storey buildings too, with the Bannered Mare having five floors!

In terms of interior decorating, that's like making five houses... And since these are all new models, there aren't any existing interiors that I could copy and modify, these all have to be done from scratch. More or less.
As I said earlier, Whiterun will not be all filled in this time around - too much work. Instead, it will have a quest not unlike the one for Elden Root in Valenwood where you have to do things to bring the citizens back. This quest will start in this release but will actually be completed in the next release. With this I hope to give some explanation as to why there are so few people around in Whiterun when you visit it first, so it won't be so blatantly unfinished town. Obviously, you won't be able to actually do the quest this time because it isn't all there yet... You will be asked to come back later - that's for the next release.
So what can we expect from Whiterun today then? Well, we've got a few shops and an inn, the chapel is open so you can get a blessing, and there are a few people around so it doesn't feel empty. These people will also tell you about everyone who's not around and where they went, but you won't be able to do anything about it yet. There is also a house for sale, you'll need to speak to the Jarl's steward in Dragonsreach about that, except of course that Dragonsreach is closed for refurbishment just now. Seems you'll have to wait.

The Jarl's housecarl had a falling out with the Captain of the City Guard, a brawl followed, and now major repairs to the building and furniture are required, and the steward has his hands full organising it. The Jarl gathered his housecarl and the Captain of the Guard along with most of the guards and took them all away on a team building exercise somewhere - he is keen to avoid any such brawls in the future. Gosh, you'd think a dragon was thrashing around the castle!

So you see, it's closed at the moment. Come back later.
The Mages Guild is closed until it reopens.
High Rock Gourmet Inn is closed because Belethor had gone to High Rock for supplies and new inspiration. He'll be back of course, never fear.
Fools' Ebony is closed for stock taking - Dervayn Adlenar is off to Morrowind for supplies, he was unhappy with what he got last time and decided to see to it personally this time.
Dragon Break Books is open as usual.
The Bannered Mare is open, and lodging is free due to the lack of customers. It won't be like that forever, so be sure to take advantage of it! Be sure to dine there as well, or else!

Well, there's no where else to eat in town anyhow, except for the Drunken Huntsman, but who would go there?
The Warmaiden is open.
Jorrvaskr meadhall is open, but when you enter you only find the housekeeper there. She tells you that the Companions are currently out of town. Come back later. Oh, and Jorland Grey-Mane at the Sky Forge isn't trading with you because he only serves members of the Companions. So pointless to ask.
The Golden Cauldron is closed because Arcadia is self-isolating with Ataxia again. You can wave to her when she looks out of the window.
The Drunken Huntsman is open. The notice board next to it is rather empty though, you must have caught them at a lull.
The Chapel of Kynareth is open but where is the priest? Gone to bond with nature, it appears. Still, the altar is working, but it's all self-service now.
The Battle-Borns are on holiday! Went to the Golden Coast for a few months. Rumour has it, they planned on taking one of those tropical tours from Anvil - yes, some of those ads even made it to Skyrim! A new tropical island with untouched pre-Ayleid ruins... That got their interest. It may be more than a few months, by the sound of things though...
All in all, your immediate needs will be covered, but for more adventure come back next year.