Wooooooow, that was an awesome chapter. I know that Kyoko has talent for acting, but now it seems that she's also learning how to affect the other characters' reactions with her acting (like Ren). But i'm also thinking that this may not be the case: maybe Kyoko inmersed too much in her role on purpose to get back at Chiori in some way.
To answer your first question: it is showing no signs of ending. All of the main characters are still developing.
And while you (more like we) wait for the next chapter, you should check out Tokyo Crazy Paradise. Skim read your manga list and I'm pretty sure I didn't see it there.