Yesterday night we have received the latest v11.50 Beta 1 X-Plane build with the new Vulkan graphical framework. Since I read about it just before I went to bed, I had to test how it affects Mission-X plugin.
Long story short, it seems that the plugin works as expected, so Laminar Research OpenGL bridge seem to work nicely which means that:
Plugin window/images/3D Objects just works as expected.
The only thing I did not test and I do not suppose it will work are the Graphical Cues of task and triggers. I will have to think of something but it is not a show stopper since no simmer should see them unless you are a designer. Which means, you can always test your mission in GL if you need the graphical cues but when you move to Vulkan it won't work (probably).
Cheers
Saar