We don't need to wait until the next chapter. It's obvious from the fact they’re on the same page when she screams his name. I don’t see how CLAMP could have made it any clearer than that.
ETA: Geez, taking a cookie from me was an incredibly mature way of responding, wasn't it? T_T
If you're not CLAMP, I don't see how you're in any position to say what's what. D=< Ship what you will, think what you will, but there's no need to be catty with others who have different interpretations than you. Also, taking a cookie would be a perfectly reasonable response to a harsh comment such as your earlier one.
I liked this chapter a lot. =3 The big two page pics were awesome... And I personally think it's understandable Sakura would scream for R!Syaoran, she does care for them both and seeing either of them hurt would probably be upsetting. They share the same face, and everything. xD
I'm still holding out for a good ending for the clone... it's tricky to call at this point.