I have voted yes, not because I need the application but because porting QML applications from Harmattan is really needed to help improving the compatibility between both platforms.

In the process of porting you might find issues with QtComponents for Fremantle and your reports would help improving the libraries.

However, I would suggest you to focus on CSSU compatibility, without worrying too much trying to keep compatibility with PR1.3. That would ease your work and would promote use of CSSU. We are pending on Pali to upload to Extras the package CSSU Installer, once done it could be used as a dependency to ensure that the user has installed it.