Corona is built to work well with its host applications, though it would be nice to have a separate, exportable format so one could exchange files between applications that use Corona.
There certainly would be some hurdles, as for example, using application specific procedurals and modifiers, but having the bare scene with all the corona materials and their settings would speed up the work.
If there's already something like that in the works, then...change the name to CXF because I came up with it and use Hard Hat Harry(working on him) as the mascot!