You can continue to make content in the existing system. One way to do
what you want without too much effort is to continue creating content in
the current system, and then use the content migration tool to migrate
that content over to DPS 2015. It'll save you the hassle of having to
upload the content twice, yet still give you the flexibility to use the
new DPS 2015 system with content you're producing for the current
system.You can even follow this model to try releasing an updated
version of ...