The rumour was far fetched to begin with, but taking a step back, nobody thought Nolan would be writing a superman movie and cavill would be superman and snyder would be the director, yet here we are less than 3 months away from that film.
In fact two of those things you and Jamie said would never happen
But I agree that it only makes sense that a superman sequel will go through if MOS is a hit. That said, if its only a mild success I think the team up rumours will start again.
Bottom line is DC films are not a priority for WB. Just upsetting when you see them dump 200 million on jack the giant slayer when you know a flash or ww film would have made more than that regardless of quality.