Ganondorf (definitely my most anticipated amiibo)
Olimar (They still have not added him yet? Pikmin is a really popular franchise. He should've been in Wave 2 with Pit.)
Wave 6 Duck Hunt
Mr. Game and Watch (Yeah, people are YEARNING for this one, but id like to keep the remaining unlockables (aside from Falco, for popularity reasons that are hard to describe) in the last wave.)
Also, ive noticed an amiibo trend. Red, Green, and shades of red (Such as pink or orange) are common, and Blue, Purple, and White are rare. Of course, there are exceptions *COUGH*Little Mac*COUGH*
Maybe we can use this trend to predict the Wave 4 and remaining rare. IM CALLING ROBIN! And maybe the common too. IM CALLING WARIO!