So, even though Hellblade was a timed PS4 exclusive, it looks like it'll be the final Ninja Theory game to ever appear on a PlayStation console. At E3, Microsoft announced their acquisition of Ninja Theory. Yup, the long-time PlayStation/multi-plat developer has been bought and all future games will appear on Xbox only.
I found this announcement to be a little strange since Ninja Theory was always boasting about being independent forever-and-always. I guess Hellblade took a large dent out of their wallet. Good for them, though. If this is what they wanted, they deserve it. They're such a talented studio and Microsoft is lucky to have them.
One thing's for sure... we'll definitely never see a Heavenly Sword sequel now.