I forgot I was a follower of Terrence Cole's YouTube channel containing just a single video about this OpenFA project of his. Well, just one hour ago, he posted a video about the release of an alpha version of his work.
More links in the video's description. Apparently it's an open source recreation of Jane's Fighters Anthology engine. It does look good!
Strike Fighters 2 WinX Edition is not going to happen, TK has been off the radar for so long. So I'm very curious about OpenFA. For the release to work, it seems it is required to at least install Jane's FA or one of its previous expansions/releases.