If everything’s built against an abstracted SDK, they could have games ported over with just a recompile potentially. If the new system is much higher performan

If everything’s built against an abstracted SDK, they could have games ported over with just a recompile potentially. If the new system is much higher performance then any optimizations against ARM would be a non issue. If they allow lower level access to the hardware, it would be a lot harder, but you could conceivably implement a GPU emulation at the hardware layer. Or depending on costs, just include the entire SOC for the compatibility mode, like PS3 did for PS2.