Can you use Sitecore JSS components with Sitecore MVC components in the same Experience Editor page? If this does work, does it work with dynamic placeholders?
An example might be adding a Experience Editor configurable Sitecore JSS component to an existing Sitecore website with editable pages composed with Sitecore MVC components.
Another might be a blended team of Sitecore MVC developers building your average Sitecore components. Then you might have FEDs who want to build a complex component which needs to consume data from various APIs outside of Sitecore, but has label, text etc configurable from Sitecore and sits in the flow of the page.