Oh hey look…a twist. I actually saw that one coming when Satsuki mentioned the dead sister. Now it’s pretty much set in stone that Satsuki and Ryuuko will team up together to defeat Ragyo. If they keep things this way, it could be more interesting. I have always thought that the fact that Satsuki had Junketsu was unfitting. She’d be a better character if she were the one that completely rejected fighting with Life Fibers. Sadly, I doubt this will be the case. She’ll probably gain Junketsu back and use its full power, similar to Ryuuko.
That being said, just how much more can Ryuuko really power up? Maybe the last part is just the recovery of her heart or something in order to get the dream team together for the last fight. They did say in the preview that Ryuuko is unconscious, likely from the loss of her heart. Maybe they still have the body because Ragyo only wants the heart or something. The speculation goes on. From the preview, it looks like Ragyo will be imposing a sort of new world order with the COVERS controlling everything. Resistance group consisting of the former Elite Four and the remaining Nudist Beach members will probably be recovering Ryuuko and Satsuki.