there has been alot of specualtion on whether sasuke will get or has mangekyou sharingan. I found two pictures that look remarkably similar.Naruto 223 | Read naruto chapter 223 manga online as you can see this is when itachis ms is almost complete now look at thisNaruto 388 | Read naruto chapter 388 manga online these two pictures have very similar characteristics. First of all, as shown in the picture with itachi, when his mangekyou was forming the pupil of the sharingan got bigger and touched the outer pupils of the sharngan, this is exactly what is happening to sasuke in the next picture, this could mean any number of things but it does look like sasuke is gaining his very own mangekyou sharingan.
Now the next thing that caught my eye was the text inserted on the page where itachi is activating his ms, it says, "the pupil of his eye shows the disastrous conflict between itachi his father and his family!! A vague fear and suspicion engulfs sasuke!" what i get from this is that the reason itachis ms started to form was because of the conflict between his father and the other members of the clan that happened right before hand. Now in the sasuke situation, it is shown that he is having his own conflict with itachi which is his only living family member,so this could be the reason sasukes ms is starting to form. and the reaction that itachi had to this was shock, as was sasukes reaction to when his brother activated his ms.
I think that this is also the reason that itachi could no longer hold sasuke in his tsukuyomi jutsu, the reason being is because he was so shocked of sasukes eyes. and some people will say that the only reason that sasuke escaped tsukuyomi was because his transformation to cs. level 2, but i think that it would take a little more than a quick power up to defeat a legendary technique and tsukuyomi happens in an instant in real time so how would he have the time to power up, it had to be that itachi could not hold sasuke in the genjutsu to begin with because once your in the genjutsu your in it. another reason being is that when itachi was fighting kakashi in the save garra arc, kakashi seemed quite confident that itachi was not going to get the better of him that time, I think that kakashi knew that itachi's tsukuyomi would not work on another ms user and i think that was the reason itachi didnt use it on him, but it could also be that the itachi was fightng with a special clone technique that only inherited 30% of itachis stregnth, but even so i dont think iachi would have used tsukuyomi on him even if he was fighting him for real for this reason.
thats my theory on sasuke gaining ms, ??????