The job of QuestionTemplate is getting information from the filesystem and read infromation regarding the theme.
However currently it is getting the information in QuestionTemplate::getQuestionTemplateList() from the database which is already covered by the QuestionTheme::findQuestionMetaDataForAllTypes().

This can cause issues with attributes that are currently used by a question theme but are not in our global list of allowed attributes in questionHelper::getAttributesDefinitions().

So if we implement the correct loading of QuestionTemplate::getQuestionTemplateList() from the filesystem we would not have to worry about having undefined attributes.

One importing thing that needs to be done before this can be fully integrated is to add the translation strings to the xml files which are currently set through questionHelper::getAttributesDefinitions().