Mobile Suit Gundam: The Witch from Mercury Season 2 : Episode 6
Current Episode Score: 8
So I guess this answers the question as to if Aerial/Eri would be able to move independently without a pilot eventually. If they become strong enough they can work completely independently without outside assistance needed. I also feel like the episode and interactions between Aerial/Eri and Suletta answer some questions as to why things are progressing the way they are. Aerial/Eri want to protect Suletta and let her have a more normal life that they couldn’t have, and therefor are trying to protect Suletta and make sure she doesn’t get involved any further in these events. How Prospera connects to it, still not sure. Not sure if she is going along with Aerial/Eri out of love for both them and Suletta, or if she needs to place Suletta in a certain mental space to use her.
Honestly by this point I don’t have a clue where the show will be progressing at all. I’m assuming at some point Suletta will end up back in Aerial/Eri and fighting alongside them, or stopping something from happening. If I had to guess, there is an unseen issues once they hit lvl 8 and start working independently. And the only way to stop them and save Aerial/Eri would be for Suletta to assist.