Keep in mind that I do not know this IP well at all... but I will tell you that at least two of your thoughts are true and happening!
![tumblr_nglx2gxfDs1u1rr59o1_400.gif](http://33.media.tumblr.com/64318568cc9eb68bc74429fdcf825b4a/tumblr_nglx2gxfDs1u1rr59o1_400.gif)
I also expect Nintendoland will have integration for the handheld console, kind of the way way Potter has the wands. Something with amibos would be cool as well.
I expect Amibo's to take a big part in the land in a sense. It would make sense, synergizing with a very profitable element of Nintendo right now. And using that for the parks; would make sense in allowing new way's of element's in the land to come alive.
Perhap's that is just me; but it makes sense.