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Not sure it "needed" a 2nd season, since the main premise was kinda finished in the 1st one, but will see how it goes. I'm sure Selena will be the best girl somehow.
Episode 4:
I do not believe in the "connection" between Rufus/Sora and that green-haired guy at all, it's too undeveloped and illogical. But the ending was
Episode 12:
To be honest, it was mostly "meh", because the main premise was gone. And it looks like they are kind of forcing it back for the movie. Moneygrabbers, I guess.