The basic assumption about contemporary aerial warfare is; a lot of non-stealth aircraft can be 'sniped' with BVR missiles and AESA radars. This combo means opposition will have to keep their non-stealth platforms grounded, while you can keep yours in the air, if they are stealth. This combination of stealth+BVR+AESA is a silver bullet for countering what is essentially %90 of the existing air forces. The role of older aircraft in any scenario where this combo exists is very limited during the opening stages of a conflict. It is either wait on the ground for air supremacy to be achieved, or serve as bait to lure out or deplete missile stockpile (if unmanned).
This is a convoluted way of saying non-stealth aircraft will lose their A2A role in this new way of aerial warfare. I know tihs sounds pretentious, and I concede that this change of role will be gradual and slow, but I think this paradigm shift is coming and it's coming fast. I believe in the medium term, Non-LO aircraft will have two main functions: Bait, which I believe is a very important role; or doing things in uncontested airspace.
We already have a range of UAVs that can do a terrible amount of damage in uncontested airspace, as Assad found out in Spring Shield. That's one role fulfilled. For the other; the main point of this post is to highlight the need for dedicated decoy drones. We need them, we need them in numbers, we need them reusable, we need to craft a central position for them in our doctrine. They are very underrated IMHO, considering missiles are the most precious resource any opposition has in such conflict, maybe other than pilots.
A minor point about AESA+BVR+Stealth combo; when you throw in a stealth unmanned fighter like Kızılelma into the mix, it disrupts this relatively simple formula. Just to be clear, I'm sure KE will be VLO at some point. So there will be a platform that can get closer and actually score some hits against formerly untouchable BVR missile firing platforms, without risking a pilot's life. This alone is a considerable capability that doesn't exist for any nation AFAIK.
This is my read on this as an unprofessional afficionado for this stuff so feel free to correct me.