The one I see having the most potential to sell Amiibos is the New 3DS support. The problem I see is that the people most likely to buy Amiibos to use for their 3DS probably already have a Wii U, being Nintendo fans. 

In a lot of ways, how Amiibos sell will have a lot to do with what Nintendo does to tie them all together. Without a game already released to tie things together, I don't expect momentum to persist.

Good job Nintendo! 6 million isn't too bad for now. I like the idea of Amiibos and so far I own 3 of them (Link, Samus, Mario) and it looks like almost all Nintendo games from now on will feature some sort of Amiibo compatibility, even if it's just a little gimmick like in Captain Toad: Treasure Tracker.

But unlike many people, I don't expect some sort of Amiibo game in the style of Skylanders. Nintendo wouldn't do that, and I'm happy about that.

Unreal sales and at least its giving Nintendo more space in game shops a bit of frontline branding, with these kinda sales retailers will want more, which in turn should held hardware and software sales

Really? Points 1+2 show that at best only 1/4th of the amiibos launched. With many stock problems on some of the characters as well.

That and especially #3 with An Amiibo game you dont think it'll grow by a good margin? Also there is pokemon... And amiibo cards that will come in the future.

Nintendo wouldnt make a platformer? er ok then

I'm rather talking about having to buy more and more figures just to play the game. Not about it being a platformer =p

No, I don't.

Nintendo already has a cross-franchise title in Super Smash Bros. I don't see the novely of adding Amiibos doing much to push another game of a similar type.

Amiibos aren't the focus for SSB, never have been. Also there are many cross over Nintendo titles, i dont get how that has anything to do with amiibo made game. 

Amiibo game doesn't have to be Ahuge SSB cross over game. It could be a pokemon game or a super mario line game for example.

The first point is true. However, I doubt the ones that follow will be even close to as popular as the ones already released. Franchise faithful might pick up some of the supporting characters, but I'd argue most of the sales potential has already been reached, without something new added to the mix.

As for the third point, yes, I think a game has that potential. I just don't expect them to be able to do it without poisoning the metaphorical well.

Around the time Codename Steam releases, mostly likley a few weeks before I think.