Not as far as I know.
I'm working on fixes and updates to a bunch of these plugins. One of the changes is to move the S3 settings into the cropper.config file, and use IConfigurablePlugin.
Also, the SendToEmail plugin will get updated, the SendtoImgur will get an update to use the published Imgur API; and the TFS plugin will get an update so that it actually works.
All of these are IConfigurablePlugin now.
I've checked in most of the source changes; a binary release is coming. I haven't made any provision for migration of S3 configuration data. The old data will simply be lost, or, the user can hand-edit the cropper.config file to insert
the S3 settings. It's probably easier to just use the UI to do it.