Question Disgaea 5C - Demo Save to Full Save?

In restated words, is it possible to get the Demo save for Disgaea 5 Complete and turn it into something that the Full game can use?
I'm hoping [again] that all it requires is a change in the name of a directory - perhaps the demo's save name/dir just needs to be renamed to that of the actual game's use.
To hit two birds with one stone, assuming this is/will be possible, will/would I have any issue with the physical copy being PAL?

 

According to Google searching, people have reported - and I think NIS had a statement as well - that this wasn't the case.