Ace combat 7 was recently released, the game features a small VR portion, luckily there is a short free demo on the Japanese PSN store that showcases the VR section.
I'm not really into flying games but I am into free VR demo's so I thought I'd give it a go, I recommend you give it a go too.
I don't have a PS4 Hotas but I do have an old PS3 Hotas, I hooked up my GIMX adapter and setup my Hotas as a DS4 (GIMX article to follow), I still need to tweak the settings and get used to the controls but overall I enjoyed it, looking round the cockpit and turning my head to track targets was very fun. I will upload a video when I get my settings right.
The demo starts in a hangar where you can look around tour plane, you then launch from an aircraft carrier, approach some enemy planes and then engage them, theres also an island you can explore, some clouds that will help you lose a missile lock, the demo then ends after what feels like a set amount of time.
Like I said at the beginning, I'm not into flying games but I'm still going to be giving the demo a few more goes, and may consider the full game in a sale.