So, in a hypothetical peer / near peer conflict?
I don’t know if to much will change to general approach as we’ve seen in, for example, in desert storm etc.
Sensors got more capable, weapons either. There are new players in the game, like F-35 and the Raider, refining F-117 like capabilities.
Most SAMs and CC will be cleaned up by a combination of stealth, sead and long range missile strikes, I assume. F-15E/EX usage will then be ramped up for more dirty work, escorted and supported by other aircraft depending on individual threat level. Maybe even by AI wingman and drones, which are the hot stuff atm.