Look again. That trailer would be way too big for the Deluxe Prime, plus I've spotted a difference: The Chronicles trailer has MechTech holes in the front:

Which means it's a new mold. That doesn't exactly help me over my disappointment. Let's see what each set has:
Optimus Prime+ New Trailer for DotM Deluxe Prime
- No G1 Trailer for G1 Prime
Megatron- DotM Megatron has nothing really special
- No accessories for G1 Megatron aside from the scope.
Looking at G1 Megatron a bit closer, it's a replica of the Good Bye Megatron edition, which has no chrome, but has the red of the Hasbro releases, plus the scope.
The resident Rewind... well, half of one

- Jelze Bunnycat =:3
Looking for:
- TR Furos (Hardhead's head) and Crashbash (lost him

)
- PotP Punch head
- TR Galvatron right arm (the gun one)
- CW Brake-Neck/UW Wildrider, CW Offroad
- TR Twinferno & Grotusque
- Greenlight, Lancer and PotP Elita-1
- Legacy Core Slug, Sludge & Snarl