it's going to be interesting with the 16 inch macbook pro the imac and mac pro. of course apple has the full licence with ARM to do almost anything they want but based on my understanding the X ARM cores the 7 series and 5 series can be clustered. My guess would be apple moves to a cluster based design eventually like in m1 but with more cores for higher end machines but right now i'd say just a chiplet version of current m1 chips would still be a great option with higher frequency. A 4 or 8 chiplet design would still be only 150w or so with gpus disabled or somehow using all gpus as one. This is the strategy amd has gone with obviously with chiplet without gpus but I think this also makes sense for apple to reuse its designs.