In the Customize menu of a project, you can sort the order of Task Templates using the grips on the left (6-dot icon). These reflect in the order they appear when you create a new task in the project.
In the Bundle editor, you can do the same, however, once changes are applied, the new order or Task Templates is not reflected in the projects that the Bundle controls.
It would be great to add this functionality, rather than having to go into each project to manually change the order of the task templates.