I was just thinking... and I think I mentioned this in the other chapter and I'll bring it up again, do you think now that Sakura has left the feather, could Clone Syaoran or Fei Wong Reed find a way to get it back? I mean, no one can sense the feather... yet it's still possible for Fei Wong Reed to have known the feather is in the Tokyo world (wasn't he watching in his usual big mirror?). And he can alert Clone Syaoran about it...
If that happens, then I stand by what I say... that Clone Syaoran might return to the Tsubasa gang and claiming he had hurt the people in the Tokyo world (or maybe even killed) to get it.
I was thinking the same thing as well. Fuuma can handle Kamui (who could handle C!Syaoran pretty well), but now that he has Fai's magic...I don't know. Unless FWR is still watching the group, he probably won't know about the feather. He may be busy dealing with C!Syaoran at the moment.
I'm thinking Yuuko is going to use Kamui/Subaru/Seishirou though. When I think about it, she stopped Kurogane and Seishirou from killing each other (the arrow with the white day complaint), and she knew that Kamui and Subaru were in Tokyo. She was planning days in advance for Subaru's wish, it took Watanuki and Doumeki several trips to get all of those jars. The sad thing is, she knew that Fai would lose his eye. T_T
Unless Subaru and Kamui were only used for saving him, which I doubt.
Although right now I'm more concerned about what Sakura wants to do. If she doesn't want to retrieve the feathers, that kinda leaves the group at a stand still, doesn't it?