Any post that starts with, "There are rumors...." is immediately suspect. However, you can be sure there will be calls for the 25th amendment to be invoked but I guarantee you it will not be. Why? Well, the cabinet and the vice-president have been specifically chosen for the fact that they are blindly loyal to Trump. This could be that they have been promoted way, way over their ability and experience level, they have been paid off, they are compromised (Trump loves to keep dirt on people) and they know they will screw themselves. Probably all of the above. In addition, if you look at the mechanics of how the 25th amendment removes a president, the process is more cumbersome than impeachment and conviction which achieves the same goal. So @KhunLA is absolutely right. This will never happen.