Some software are released under the GPLv3 "or (at your option) any later version".
Mozilla Public License 2.0 (MPL-2.0) allows recipients of the software to use MPL-2.0 or any later version:
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version of the License under which You originally received the Covered Software, or under the terms of any subsequent version published by the license steward.
But what happens if the license steward (e.g. the Free Software Foundation, or the Mozilla Foundation) goes rogue and releases a new version of the GPL or MPL that is wildly different in spirit to the previous versions of the license? For example, if the next version of the GPL or MPL is essentially a public domain dedication, will I be able to do anything to stop users of my software from applying the terms of the new license?