I'm going to laugh when the representative of summer finally shows up... With all of these pics of Yuuka representing summer, I can almost see art of the two of them fighting it out.
My thoughts as well before. But considering that Yuuka is the Flower Master of the Four Seasons, that's actually a better position overall and she'll still have a place in these images I think.
I can definitely see Yuuka as friends with the four, but I still expect the fandom, at least in japan, to have some kind of tension between Yuuka and Summer, simply because she used to be filler for that seat...