This is the reason why they're not going to move on device anytime soon. You can use compression techniques, sure, but you're not going to get anywhere near the level of performance of GPT-4 at a size that can fit on most consumer devices
I agree that "near future" is quite ambiguous though. If I were to disambiguate my claims, I think I'd personally expect a Transformer-killing architecture to arise in the next 4-5 years.