No plans. There are a few issues with fully supporting scene graph transformation on form controls.
The main problem is that form controls don't rotate, so even if we added the support now, the immediate caveat is that they would not be affected by rotation of a parent, which is a pretty big caveat.
I am not quite sure how much work would be to add support for form controls rotation, but like everything else, I am sure it would be more difficult than it sounds.
I imagine the implementation would somehow involve CSS transformations (because it is the only way to apply rotation and scaling to DOM elements), but that is as far as I can picture. It seems like it is possible, just not a pressing issue.