I'm going to put a warning out there once again; absolutely no one-liners in any thread whatsoever. It comes across as spam and I don't want any of y'all to get a warning from the staff members once they return to patrol this thread and notice the issue. It is stated in the rules thread on serebii about one-liners and hopefully all of you understand that. Please break the habit and be more informative on your posts.
As for Hikari returning, I have read many discussions in the Pearlshipping Vault and I'm going to agree with some opinions there. It may be nice for her to return, however, there can also be a major risk if she does.
I'm going to start with the pro of her returning:
Hikari can help with Serena's development as a character. She is already a positive role model to female characters in the Pokemon series that shares independency and dependency. She shares the will to pick herself up and have the initiative to allow others to help her and criticize her when needed. She is passionate for her dream and can help Serena realize that she can be more independent than relying too much on one person to help her out. As for Satoshi and Hikari's friendship, there is a possibility that Serena can understand how powerful their friendship is and that Satoshi is much more passionate with the chemistry he has with Hikari (imo).
I'm not a fan of Serena being jealous at all of a girl with Satoshi, I'd rather see a positive side to her view on Satoshi and Hikari and see an inspiration within it.
Now for the con:
Hikari's friendship with Satoshi can be at a huge risk of not being the way it currently is. First, Hikari might notice Serena's crush for Satoshi and become a supporter for Serena's feelings. It's not a bad thing, but the friendship we know and are inspired by could fade drastically and we could get a lot of amourshippers on the internet attacking the pearlshipping thread like what some of the SS and NH fans of Naruto have done to the NS shippers beginning last November. There really is a risk for Hikari returning especially Pearlshipping, which makes me a little bit against having her return in the XY series. I'd rather have Airisu make the return since she has yet to do so and I would like to see more of her character development.
I'm not giving up on you. You don't understand this yet, but people need you.