That's honestly really exciting to hear if you have legitimate programming skills unlike me! All I'm good for with respect to the mod's development is playtesting and writing feedback, but if you seriously want to try and dive into it, by all means I will at least do that to help.
And on second thought regarding my previous post, there is one thing that I do regrettably think that RI (and really Civ4 in general) is lacking on, and that's the whole diplomacy model. I suppose my suggestion about territorial exchanges being more treaty oriented than of direct conquest is along the same lines, but I think that diplomacy, while not altogether disappointing, is still relatively lacking in interactivity and the range of options (all the more so with tech trades removed). If there's one thing I'd like to see the mod expand if at all possible, it's that. Combat and warfare in the mod is satisfying for what it purports to do in my opinion; there is a good mix of tactical and strategic decisions and depth at the same time as plenty of player interactivity, empire management is fun and presents interesting choices like "do I build this building or instead bolster my army with another unit?" etc., but the only thing that feels kind of stilted is diplomacy. While there are still lots of passive values that are meaningful and strategically significant, the actual conduct of diplomacy is pretty much just a matter of DoWs and open borders agreements, with the occasional resource trade or request/demand for money or to switch a civic or religion. While those are admittedly really important aspects of it, quite frankly it could go a lot deeper, but that part of the game is purportedly hard-coded and virtually impossible to modify. While I didn't really think about it when I was writing my last post, this is something that I would be thrilled to see expanded.
On the air combat thing, though, I know what you mean, but in my experience, any air mission you attempt in their airspace will trigger an interception roll, so what I do is just recon or air strike with my fighters first to draw in their own fighters, and they'll either be shot down or damaged enough that the bombing can commence. So while it would be cool if you could "directly" attack enemy fighters with your own, that already more or less happens just by sending yours on a mission in their skies. Programming a literal "air superiority" mission command would still be really cool though.