As long as we get wave 3 it doesn't matter.
Wave 2 is just WFC Prime, WFC Bumblebee, WFC Megatron and Darkmount.
Wave 3 is Megs, Darkmount, Soundwave, and Red Alert.
It makes Wave 2 kinda a half wave that is alright to be skipped because the new figures are released again in the following wave.