Creating a new project for an existing app

Long story short, I have an app on the App Store that was built a couple of years ago that I'm wanting to rebuild using storyboards and other technologies - but I don't want this new project to be a new app. When I submit the new project to the App Store I want it to replace the existing app as an updated version. Is that possible?


I'm assuming so but I've never done this before.


Thanks!

Creating a new project for an existing app
 
 
Q