Well since a "could be" prophecy is not good enough under the rules anyway. But the point is that since most Christians believe that the references to Babylon in the Revelation even the "could be" rests on a rather questionable interpretation. Do you take the reference to Babylon as being a woman (17:5) literally ?
Even if you do not go so far in being literal, does the city of Babylon sit on seven mountains (17:9) ? Is there any realistic chance of a king ruling from Babylon in the forseeable future (17:10) ? Is there any chance that Babylon could rule over a major empire in the forseeable future (17:15) ?
Yes (17:5)
For the last three Questions: Seven Mountains: Yes chance of king? Yes Babylon ruling over a major empire? Yes
A further answer will surely be made, I have to read into Revalation a bit more, and probably take a little time to surf around.
Revelation 22:16 - I Jesus have sent mine angel to testify unto you these things in the churches. I am the root and the offspring of David, and the bright and morning star.