One of the most exciting things about this remake for me is how it seems to be carrying the spirit of not just RE 1.5, but RE 3.5 as well. If you're not familliar with RE 1.5, it was the original scenario for Resident Evil 2 which took place in a much more conventional looking police station than the schizophrenic art gallery we know today. The basic plotline was similar enough, but there are many subtle differences, such as Claire being called Elza Walker with a completely different appearance. The team ended up scrapping the original scenario after getting an actual screenwriter on board who wasn't impressed with Kamiya's original script, resulting in them rebooting the project, eager to get it right this time.
Here's a video showcasing this scrapped build if you're interested:
The most obvious nod to RE 1.5 is the Elza Walker skin that's being included in the special edition, which would be exciting enough by itself, but after watching various gameplay recordings I've noticed a few other potential homages as well.
Atmospherically, the remake seems a lot closer to RE 1.5 with it's dark, moonlit hallways. There's a scene early on where you see a police officer get torn in half under a shutter door, which immediately reminded me of the scene at 0:37 in the video above. I'd like to think this is their way of paying homage to the scrapped project, there has after all been a lot of demand from fans for them to release it in some form. If you notice any other similarities, feel free to chime in.
Now, moving onto 3.5... I won't bother trying to explain because I'm honestly not as familliar with this one, but basically it's the early build of Resident Evil 4, when it had a more supernatural flavor with Leon suffering from hallucinations. The way Leon walks around with his torch immediately reminded me of this demo, and even the way he holds his gun is identical to the point where I don't think this is merely coincidental. It's possible that Capcom had been wanting to do something like this for a while, but simply didn't have the technology until now.