User blog comment:Lia Schiffer/417: Deicide 19/@comment-1248963-20100826033836/@comment-1454424-20100826055905

It's not easy to travel between Living World, Soul Society and Heuco Mundo. Gin hasn't displayed Garganta capabilities. In addition, considering the guy spent his whole life trying gain vengeance for Rangiku, unlikely he would want to live the rest of his life in a situation where he and Rangiku are separated... again.

So really, the only way that would work is if Gin get's away with "exile to the living world" and takes Rangiku with him. Then yes, he could be on hand as Ichigo continues his story. Remembering that the only thing we can be certain off is that Ichigo will be in future Bleach chapters. Gotei 13, Vizards, even Ichigo's friends, none of them might continue. Especially since Kubo has said he plans to introduce the royal guards in the future.

It is possible BUT it all goes back to the same thing. Kubo needs to want to write future storylines with Gin in them. Right now, as far as I can tell, the copious amount of movie merchandise with Gin is a bit of peace offering from Kubo so that Gin's legion of fangirls don't flood him with hate mail.