My F-5 wist list, not that I'm awaiting an update but just to put it out there:
- ILS (IRF capability)
- Tip tanks
- Sidewinders on under-wing pylons
- Mavericks
- 2 freq radio
- Oh also an outside air temperature gauge to turn on the anti-ice appropriately. I didn't read the real manual though so I don't know the exact operation. Maybe you don't need it.
Preferably no digital stuff because it would ruin that nice time period simple analog aesthetic. Ideally, instead of chasing a very specific version, I think it's best to bring out the most of F-5 while also keeping it classic, that is to say no crazy 4th gen+ upgrades (we have the 18 and the 16 for that). Of course integrating all these different features will also be an entirely new development challenge for the module.
Another thing: Is AIM-9X backwards compatible with older models? That could be interesting to play around with. A scenario where a modern day operator of old F-5 gets their hands on x-rays as a quick upgrade of sorts to fight a superior foe.