Ra88
Super Freak
Nah, a bunch of them have small touches from recent toys.
And the final boss,
I dig the G1-ification of those designs though, and most are only there if you really look for them.
Spoiler:
Bumblebee (most obvious one).
Megatron (tank, has some stuff from the recent leader toy).
Wheeljack (altmode is the Generations one)
Menasor (100% G1-ified adaptation of the Combiner Wars toy, down to the inclusion of Blackjack and Offroad).
Sideswipe (Masterpiece).
And the final boss,
Spoiler:Nova Prime who looks like he's based on Combiner Wars Motormaster.
I dig the G1-ification of those designs though, and most are only there if you really look for them.