Back to actual Architecture:
Quite a few people are looking forward to seeing the three dimentional properties of the map. Games like Skyrim have fairly large maps, but they also tend to focus on a single 'level' as it were. Sure there are towers and dungeons, but they are few and far between by comparrison. Night City should not be like that at all. When space becomes a valuable commodity, people start building up. It's worked that way for millenia. Göbekli Tepe proves that people were building large groups of multi-storey buildings in stone from at least 9,000 BC. As we build higher, it becomes less and less practical to travel all the way to the bottom of the building to get around.
I want to see walkways, gantries and balconies. I want to see raised highways and maglev lines. I want to see dedicated holographic AV routes picked out to direct the, (hopefully increased,) ariel traffic. In 2020, Night City didn't have a subway, I don't see that changing, (but I have no issue if it somehow does - as long as there is a good reason and explanation.) People should
need to get around above the street level.
Lets take a look at Total Recall (2012):
As you can see from the two images, the cities operate on multiple levels. Many buildings are connected at various levels making transit and access much easier in the densely populated urban environment.
I am also a big fan of Gothic and Deco architecture. I would love to see an updated style influenced by these styles.