This is frustrating, Microsoft announced that they were going to port the excellent Windows Phone keyboard to iOS and I was hoping it would come to Android too.
Windows Phone's predictions was nothing much, though. SwiftKey is capable of supporting multiple keyboard layouts, their magic is that prediction software. It's entirely possible/likely that Microsoft will take their layout that people like, and offer it with SwiftKey as the predictive text feature attached to it.
I've recently switched from a Windows Phone back to an Android one, and from my experience WP keyboard suggestions are usually more on point compared to the Android ones. Only thing I miss about the old phone, really :-) I will be trying SwiftKey now.
I find the windows phone keyboard suggestions much better than any other I've used. Despite now having an iPhone 6s from work I still use a WP as my daily go to because it's much better at writing a whatsapp or email message, even if the 'other' apps suck.
I'm also heavily dyslexic, so I might be an outliar.