I was just about to post about this. IM SOOOOOOO EXCITED FOR THIS. I've always thought it was a cool feature from when I knew it was in e+ and I was hoping it would be brought back into future games. I'm so glad they've decided to use the cards for other purposes too rather than just for HHD, since some don't have HHD/don't want HHD otherwise I feel like those cards would've gone to waste. Now that this feature is being added I finally have a use for my NFC reader. I definitely think these cards move villagers into your town - as that's the role the last cards played for animal crossing e+ and it appears to do the same role but in a different way in HHD and judging by the screenshot that's definitely what they do. However, I don't think it means you can invite specials to live in your town but more like they can visit town. I guess this can give nintendo an opportunity to possibly distribute the villagers who weren't given out as DLC in HHD but were found in the games coding, so hopefully that happens! Also it gives them a huge huge opportunity to give special characters who were removed from ACNL but were in previous games a chance to reappear. For example in the screenshot you can see Wisp who was removed. Maybe there'll even be a card for Serena.. hm. I'm way too happy about this - it's beyond belief. I'll probably invite villagers that are really hard to find on here into town, which will probably be an easier method of getting them instead of waiting it out here.