Age of Dogfights: WWII is now up on Kickstarter. I missed out on the WWI version but I've heard a lot of good things about it. Backed this one on day 1.
https://www.kickstarter.com/projects/1732812836/age-of-dogfights-wwii/description (https://www.kickstarter.com/projects/1732812836/age-of-dogfights-wwii/description)