Bit before the end.

[Hostil Spike]

When the army of heartless start seeping in everywhere and Malificent and Pete turn up to stop them, what happens to them?

I figure shes strong enough to stop/regain control over them... And if thats the case theres still a powerful threat to the worlds out there. Anyone more clued into what went on then I am?

 

[Soleil]

The answer is probably in the rumored KH3.

 

[Dawning Twilight]

she probably was able to but no one knows yet. It did seem like she was able to though or at least she thought she could...