This game looks pretty nice -- hopefully it'll capture the first game well, or at least be as good as it in a different way. There are some features that disappoint me (Mii heads, you still have to water flowers, etc.) but it still looks pretty promising. Which is good, because I can't think of any titles in the near future other than this that I'm interested in getting that's made by Nintendo.
This is speculation based on certain pieces of the E3 video, but I think basements are returning, which is great. Storage isn't the only thing the basement is nice for. With the basement, you can have one room free from the HRA's discretion, allowing you to have a good score with the HRA and at the same time having a nice room with what you want in it.
One thing I'm kind of hoping for in the department of furniture; video game consoles. We obviously won't get WORKING consoles, as they couldn't do even the NES with the VC out now, not to mention that I believe they've officially announced they're not doing that (even though I thought up a solution where you play VC games you've bought on the systems, I guess they didn't think of that/didn't want to add it even so), but it'd be nice to have just as decoration, like the one NES in the original Animal Crossing that doesn't have any games with it, plus a SNES, N64, GameCube, and Wii.