The future of Superman might be in doubt, but certainly the fact that Henry Cavill is interested in continuing with the role is an important piece of the puzzle.
If we knew for certain Cavill was done playing Superman, then we would have an idea what direction the character would go from here, likely some sort of reboot.
While a selfie with Cavill confirms that the two did meet, without an additional source of confirmation we’d still have to call this one a rumor.