My bold prediction is that we'll see nothing more than very incremental updates, beyond their "best ever, leading, most advanced ever" rhetoric. Basically we already know, it got leaked - a bit faster phone CPU, a bit better camera, a bit faster watch etc.
No redesign of anything, nothing foldable, no holograms, no distance charging, no round watch with a week battery life. Nothing to make one say wow. Everything stays more or less the same but slightly better and possibly a bit more expensive, some more emojis, watch bands, minor stuff.
Followed by slightly declining sales. Nothing earth shattering or surprising, just slow trends everywhere.