Maybe its something to do with the fact that Dumbledore said it was important that Harry stay with the Dursleys during the holidays... and that he was brought up by them... its never explained why Dumbledore believes Harry will be safe at a Muggle house, even though he specifically states that Voldemort won't be able to touch Harry while Harry is with his "Family"
I think Luna will have a great role in the upcoming bks, i'm definite on that.
As far as pairing goes, i think....
Ron and Hermione, cuz Ron def likes Hermy, he was so jealous of her and Krum
And Ginny and Harry, I mean Ginny has always liked Harry, and Ginny'll be heartbroken to see Harry with anyone else 🙁
And as for Luna... what about Luna and Neville? 😄
And i wonder if Lockheart's gonna come back...
I think its Harry holding petrified Hermione's hand or very much knockturn alley i mean that is where all bad people are, or dobby using his powers or the scene where muggles saw the car in the air which maybe gives us a hint that the magical world will possibly be revealed, maybe mandrakes, the sword, pixies or the slyterein common room