You have to think positive. It really could be worse. He could totally go from Weir-ish to completely Weir without the -ish. Imagine what that would look like(or better don't, I'm not sure how high your tolerance for nightmares is)
Ye. Meoima you need think positive and hope Yuzuru will not end wearing this:
http://31.media.tumblr.com/tumblr_lwsks4VcjH1r4p2f7o1_1280.jpg

(or better don't, I'm not sure how high your tolerance for nightmares is)
I mean you need to cut of your shame nerves to wear that thing. And we all know Yuzuru is pretty shy. His Juliet costume was nowhere near this shameless level. 

my dream is being shattered!
I think Yuzu is still a kid in Johnny's mind. Look at R&J 2.0 costume, it is pretty pure angel like. That is how Johnny sees Yuzu in his eyes. I think Johnny will (if he is invited) design something that suits Yuzu's personality and image.