Color me surprised by this announcement. I figured they would have had at least one more game in the pipe before shutting down the franchise. There's PLENTY of characters they could have used such as...
Disney/Pixar
Goofy, Max, Pete (throw in obscure references like Horace Horsecollar and Clarabelle Cow as well)
Scrooge McDuck, Gizmoduck, Darkwing Duck, Daisy Duck, Huey/Dewey/Louie (they could be like the Ice Climbers where you can control one of the three at a time)
Chip & Dale, Gadget w/Zipper, Monterey Jack (Do these like the Skylander Minis and add in other small characters like Bernard and Miss Bianca from the Rescuers)
Dusty (Planes), Bolt, Chicken Little, Kuzco and Kronk, Simba, Beast, Pinocchio, Hercules, Robin Hood, Oswald and Ortensia (I would kill for these two), Kristoff (Frozen)
Marvel
Captain Marvel, Spider-Woman, Iceman, Beast, Thing, Daredevil, Jessica Jones, Luke Cage, War Machine (might have to be packaged as James Rhodes/Rhodey), Doctor Strange, Thanos
Lucasfilm/Star Wars
Indiana Jones, Short Round, Mutt, Jyn Erso (SW Rogue One), Wicket W. Warrick, Jango Fett, Mace Windu, Wedge Antilles, Lando Calrissian, Captain Phasma, Jar Jar Binks (just to aggravate the fanbase) and the greatest hero of them all Jek Tono Porkins
Oh well...what could have been.
In other Interactive Figure news, they just announced that LEGO Dimensions Fun Packs would be reduced in price to $11.99. Places like Best Buy and GameStop ran 50% off sales on them for WEEKS at a time, I was able to clean up on some of them at Best Buy using the GCU and getting them for $6 each. It looks like the last 3 sets came out this week and I don't really see a LEGO Dimensions 2 on the horizon in the near future (though I could be wrong).
With this announcement I'm sure Bobby Kotick will be emboldened to keep cranking out Skylanders games since there's less competition on the store shelves. It's an Activision game after all so the rule is the series must be driven into the ground thoroughly and the buying public must be well past tired of the franchise before they pull the plug on it.
As far as Amiibos go...still on the look out for Wii Fit Trainer, Pit, Robin, Lucina and uhhh I want to say one other but I can't think of who off the top of my head...Nintendo's shenanigans have caused the popularity of these things to drop like a rock so seeing reprints of the ones I just listed seem unlikely. I'm REALLY surprised we didn't get more Robin and Lucina for Fates/Birthright. $6 packs of Amiibo cards that are 100 cards per series ain't helped much either.