I am presently studying in IIT Kharagpur and i think no more IITs should be opened as that would certainly
spoil the meaning of what really an IIT is.It will become easily accesible by a lot of students.Excessing of such institutions will ruin its importance not only in India rather abroad too.There are already a lot of seats in IITs and if anyone really wishes and deserves to be in IIT he will certainly be there,no matter how less are the seats.
So i think that the neither the seats should be increased nor more IITs should be opened atleast within coming 5 years.