Kids nowadays think props are for boats. Why not Mig Alley? 86, 15, Pony, Yak, Sea Fury/Tempest, Sea Fire, Hawg, etc.... That could drive interest more than EW and MW.
having been here for almost 14 years, and having professionally reviewed combat simulators for a living in a past life, Korean War idea is nice, but not feasible because of the power balance issues for each side. I also remember a game called Mig Alley that didn't do well because it was done badly - it was actually done quite well. Just a very boring game really. (And I still own it)
As an AvA admin, I have a hard time balancing mid to late war match ups due to the vastly superior Allied aircraft. Now throw in North Korea with WWII era vehicles and aircraft against the Allied might and 500-600 MPH fighter engagements, it's a big PITA. Sure the NK has the Mig, but that was it from a balance perspective.
We sometimes run Korean War scenarios in the AvA with Me-262's and Ardo bombers to simulate the belligerents but even when it's 262 vs 262 the fighting as very very different than prop fighting. By the time you've perhaps crossed path with an enemy fighter three or four passes, 10 minutes has passed. And if you want to disengage, you just keep flying straight after a merge. It gets boring quickly, especially if you've tried to dogfight a couple times and each time it lasted 3 seconds before you went down in flames.
We found in the AvA that most Korean War dogfights lasts seconds if you're good. One snapshot on a merge and then it's over - Jaeger and I have had battles in the AvA in our 262's that we're exciting from a jet perspective, but they either lasted 10 minutes or hard turns, merges, evasions, and extensive manoeuvring at 500mph. Sometimes we spent 10 minutes of maneuvering for 5 seconds of combat. Korean War is just not that interesting as jet to jet combat is a different animal than prop vs prop combat.
So no, I wouldn't recommend a Korean War.