In my opinion I think it is important to use correct grammar especially when mentioning GS remakes because I feel that it makes things worse and any discussion about those remakes usually result in a flame topic. It is ashame though.:(
Anyway I think they should change clothes without waiting on the character of the video game who they are based off of to reappear because they might never reappear and the character ages in this manga. It would not that great to me if ten years have gone by in the manga since the recent arcs and they are 21, 22, 23, 24, etc years olds and still wearing the clothes when they were 11, 12, 12, and 14 years olds.