If you have other games on Switch you'd like to play, then I say go for it now to tide you over until launch day. I can't say for certain so don't sue me if I turn out to be wrong, but I find it highly unlikely that they'll release an AC-themed Switch, and even if they do release one it's most likely to be a Japan-exclusive (though I guess you may be willing to import for a hefty price hike and import duty fees. No judgment ? I imported an Asian DS Lite back in the day that cost me an extra $100 and never regretted it).
What special edition bundles
didn't get any unique art: Mario Odyssey (red joycons), Mario Kart 8, Fortnite, Super Mario Party, Minecraft (stickers), Mario Tennis/1-2-Switch, Splatoon 2 (green-pink joycons)
What SEs only got some decals on the
dock: Super Smash Bros Ultimate
What actually got some
unique Switch art:
- Disney Tsum Tsum Festival (Japan Only)
- Pokemon Sword & Shield Switch Lite (announced way back with the other colors though!)
- Dragon Quest XI S (Japan Only)
- Diablo III
- Pokemon: Let's Go, Pikachu!
And of those that got unique designs, I'd say the only one available outside of Japan that was any good was the Pokemon Lite because of the unique-colored joysticks (but I actually don't like the console because it's a lot darker grey than it appears in pics).
Disney, DQ, Diablo, and Pokemon are pretty big franchises and I think bigger than AC. And then on top of that, consider the games that didn't get any special decal editions despite being big-name Nintendo games. That's why I think it's increasingly unlikely that we'll see a AC special edition.