Your Sketch and Photoshop files will remain 100% supported in InVision. Studio is an additional tool made available to InVision users. It is separate and distinct from Bohemian Coding’s Sketch and Adobe’s Photoshop.
If you choose to continue to use Sketch and Photoshop, we’ll continue to support those natively inside our core platform and via our Craft plugin suite.
Studio does however have the awesome ability to natively open Sketch files.