No. The Universal Minecraft Editor was built specifically to modify saved world data. No converter is planned for the Universal Minecraft Editor, but this does not mean a standalone converter will not be available sometime in the future.
In the past, I've combined a converter with a regular mod tool and all it did was create confusion. Generally speaking, the people that want to mod, just want to mod. And the people that want to convert, just want to convert.
As a result, the Universal Minecraft Editor will remain focused on providing the best modding experience, and will leave converting to other future software.