I would suggest that perhaps the 2 side roundels split half-and-half is getting a bit boring.
[EDIT: Not that I'm picking on anyone, just in response to the "clashing roundels" comment above]This is just from an aesthetic point of view, but....
Looking at the previous patches, some of the best don't really just jam both sides onto the patch an call it done. Look at Stalin's Fourth, perhaps the most-thought-out patch to date, the most planned, rife with multiple layers of symbolism. Look at Operation Downfall, perhaps the shortest scenario ever. That image alone tells you all you need to know about the spirit and feel of the event, and to top if off is one of the most aesthetically pleasing of all the patches to date.
Then my personal all-time favorite. Look at Rangoon. You don't have to capture every last plane, the entire lineup, all the units involved. You can sometimes just grab the heart and guts of something and stick it on a patch. I LOVE this patch. It is THE BEST (in my opinion) by a long shot. I once made a comparison to others and said "look at Rangoon, it doesn't have to have both side's insignia on it" and somebody replied: "But it does, it's set on a red japanese meatball" (which only made me love it even more!)
So aesthetically speaking, you don't have to just lump the planes that participated, national symbols, onto the patch background. Think outside the box. What do you want to symbolize for the entire event? Doesn't have to be overly complex, doesn't have to be DaVinci's greatest work. Just think "if I had to sum this entire scenario up how would I best show that in a single image" and try to put that on a patch.
I think the best patches turn out because of that kind of approach.
