I think publishing a roadmap of planned and suggested features would be useful to prevent duplicate feature requests.
I imagine most people are suggesting more tools to match the mobile app and a way of sharing files between the two.
As it isn't going to be easy to implement a way to share files between the two without re-writing the mobile app I would suggest giving the user the option of how to store files. That way the files could be stored locally or using an existing cloud service (Dropbox/iCloud/Azure/etc.)
This would save VSCO providing storage at extra cost and give the user flexibility - which for instance Lightroom CC doesn't really have.