I personally think we have two years left with Porzingis and Holiday. After that, 1 of them is definitely gonna get dealt. Or they can just let KP's contract expire and it's his choice if he wants to return for cheap like Horford has in the past few years.
I think it will be the other way around. Porzingis is 6 years younger than Jrue. Horford will be totally done 2 years from now, we will need Porzingis long term. Jrue will be 36 years old. He can return for cheap like Horford did.
I don't think we can expect a 30 year old KP to sign a contract at $10M/yr. If he remains healthy at all, then he will command at least as much as he is making now.
My point was more so that Porzingis' extension will expire here after 2026. So in theory that money is off the books. Then at that point, you can maybe find his replacement (ideally a cheaper one) or if KP actually loves it here he can stay for cheaper. Not 10M a year, but also not max money.
The 2nd apron is gonna become a real thorn for us after next year, I wonder how Wyc and Brad will navigate it all. I'm already expecting 2 of Hauser/Tillman/Kornet to be gone, then Horford retires maybe in 2-3 years. This is where we need to hope Queta, Springer and Walsh among others can rise to the occasion even if as solid role player options.
Assuming we keep White though, we have a great trio to build a core around in White/Jaylen/Tatum given their ages too.