I see no reason to trade either Noel or Jah this summer, wait until you know if Embiid can stay healthy for a season.
They also don't know for sure if Saric is coming over, or how he'll fit.
And they don't know if they're drafting Simmons, Ingram or a guard.
You don't really need to keep Noel, Grant and Holmes if Embiid is healthy, too many shot blockers and only Holmes has any potential of developing a consistent outside shot.
Meanwhile, if Jah keeps expanding his range on his shot, he could partner much better with Embiid or Noel.
That's why I'd be looking to make additions to the backcourt/wing this offseason but refrain from moving a big man.
Of course, if someone "makes you an offer you can't refuse," that's another matter.