If Kishimoto really does kill off Itachi this fast - and he's pulled this utter bullshit before with Orochimaru so I am not putting it past him - I am done with the series. Way to waste such an interesting character. But I am going to hold out that Itachi has a lot more up his sleeve than this with the ambiguous pointing.
And way to go Sasuke for choosing the most cowardly attack possible. I admit I am curious as to what Sasuke is so desperate to know, and if it will be the proverbial "Why?" In which case, I really, really hope Itachi's answer is "Because I could." What makes Itachi so fascinating is that he's been shown to be a true sociopath and unapologetic in his quest to better himself (I hate redemption stories) and the true tragedy of Sasuke's life is not that Itachi ruined it. Sasuke ruined it for himself.