It seems that every other month there's an "imminent announcement" of a Metal Gear Solid reboot, usually a revamp/remaster/reboot of either the original or Snake Eater, but they never pan out. Latest seems that Konami has made some deal with Sony to produce them (along with new Silent Hills and Castlevania reboots) but that seems to have also been a thing two years ago.
Any other rumors about games that seem to pop up all the time but never happen? I think a port of the original N64 "Goldeneye" was constantly rumored non-stop until it finally happened recently.