Not to mention its adaptation of Cartel, the Fox acquired the rights for $6M.
The shooting was supposed to start in March but it seems to be pushing again ...
Seriously, do you think Scott is going to make an uninspired umpteenth spy movie based on a forgotten comic ?! Maybe at production and still .. (But you're right, you never know in Hollywood!!) Merlin saga, why not ?! But no idea if the scenario is ready or not. We know that Scott often rewrites his scripts for months.
The Battle of Britain would be a realistic project, a huge project. Scott would love to do it. But it may be added to Scott's long list of dead projects, such as Tripoli, King David, The Eternal War, Prisoners, Monopoly (lol) and so many.
Finally, for me, the only thing that seems really concrete is finished this prequel franchise. Ok, the last episode didn't work commercially. But it would be stupid not to finish it. With a controlled budget, this remains possible.