Greetings!

It's very difficult to tell anything for certain as the branch upgrading totally depends on the seat availability, if some student in your desired branch gives up their seat and according to the waiting list you stand a chance only then it is possible for you to get a seat in a upgraded branch. So it is highly uncertain to tell, even numbers of previous years are highly fluctuating so just hope for the best!

I hope this was helpful.  Thank you!