...with how much the LL crew enjoys human media and culture (Mainly thanks to Swerve), would the Quantum Lost Light who keep travelling post issue 25 basically carry their connection to the Fears into the next universe? Could the Fear Entities become a problem for them that they have to adress there?
For example with the crew having to save Rodimus from the Desolation? Do you have any lore ideas for that in your AU?
Very interesting ask ! In response, I present to you, the Lost Light :
I've always conceptualized the tma entities as a mix between god and disease, so that's how they are in this AU. That is to say, Rodimus is infected with the desolation. To continue with the disease analogy, that infection can, and will spread.
There are also aggravating factors that make the Lost Light an absolute clusterfuck of Fear activity : as you said, proximity and familiarity with human media, but also confinement within a small community, crazy shit happening all the time, and the fact that Rodimus is not the only one on the ship dealing with an Entity. Ratchet, Megatron, Drift, and Blaster to only name a few, also came on board being actively consumed by their respective patrons.
The only way to liberate themselves would be to go back to Cybertron (no) or- idk. find another way. maybe travel to another universe and hope to god your immune system carries you.