At Gamescom 2015, Nintendo has announced a new line of amiibos will be available for purchase September 11th. A second, smaller batch will also be available September 25th.
The amiibos releasing on September 11th are:
- 30th Anniversary Mario Classic Color
- Zero Suit Samus
- Ganondorf
- Olimar
- Bowser Jr.
- Dr. Mario

The 30th Anniversary Mario, modeled after Mario's look in the original Super Mario Bros., will be compatible with Super Mario Marker, which also releases on September 11th. The official 30th Anniversary of Super Mario Bros. launch is September 13th.
And as mentioned above, another set will be released on September 25th, a Retro pack that includes:
- R.O.B.
- Duck Hunt
- Mr. Game & Watch

Nintendo also mentioned the three pack of Mii Fighters, which were previously announced for September, will be pushed back to some time in November.
How you can preorder, where, and availability is unknown at this time. Nintendo has said to expect these figures and schedules to be released directly from various retailers in the near future.
At the end of the press release, Nintendo says to expect more information regarding the 30th Anniversary Mario in North America in the near future. This of course implies there are separate plans for this particular amiibo. What that means though, Nintendo has yet to reveal.