Here are what I espect to see for each future wave. Italics means the amiibo will likely be discontinued.
This features the remaining starter characters.
- Zero Suit Samus
- Olimar and Pikmin
- Mii Fighters?
This features the unlockable characters that are starter in Wii U as well as Lucina (who was announced before the other unlockables) and Falco('cause he's usually the first char a player will unlock)
- Bowser Jr.
This wave has the remaining unlockable characters.
- Mr. Game and Watch
- Dark Pit
- Dr. Mario
- Duck Hunt