Again someone else's work.
This could be the the spear head boxed set for 9th ed.
10 assault intercesors
3 Primaris Bikers
5 sword and board veterans
3 heavy weapon troopers
1 chaplain-esque model with the hourglass and sword (Word is he’s a librarian)
1 chaplain-esque model with maul (Word is he could be Primaris Cassius)
20 Necron warriors
1 Necron noble with stave and 2 retainers
1 Necron noble with war glaive and 2 scarab bases
1 Necron Destroyer
3 lesser multi legged Necron warrior constructs like we saw the sister and marine fight in the trailer
1 greater multi legged Necron warrior construct like we saw at the end of the trailer
1 construct of unclear purpose
1 multi legged war construct with a shell that resembles that of a canoptek spyder