15THE IRON MEN
This bit of concept art showing Tony Stark (played by RDJ, fiddling with his Iron Man suits was shown in February 2017 as part of the official featurette released by Marvel Studios about Avengers: Infinity War going into production. The suits in the image look to be similar if not exactly the
same, at least in appearance, though clearly, they differ from any of the other suits we've seen.
We know that Tony Stark is continuously developing his suits and creating more. With Thanos wholly entering the picture now, it's not unlikely that Stark would try and counter Thanos' forces with another Iron Legion, especially in the beginning with the Avengers having been divided since the events of Captain America: Civil War (directed by Joe and Anthony Russo).