We could add support for the bootstrap-datepicker:
There is a branch with this feature (BootDatepicker) but I'm not so sure that we want to include this in the extension after all since it's not officially a part of Bootstrap.
I would like to see Datepicker added to the extension as well.
This extension won't include any 3rd party widgets.
So, will there ever be Datepicker in your Yii component or not?