MIGs have a good chance since IAF is already using their aircraft. They could even go for the Rafales.
Anyways getting J-10 is a very good news indeed.
BTW I don't think there is going to be jf-17 stealth version. It is simply too small for internal carriage etc. Maintainence will be too high and will increase the unit cost significantly. By the time the upgrade is finished, it will have become a completely new aircraft anyway.
Every 4 th gen aircraft is going through improvements to lower RCS. There is no stealth but coatings, less RCS structure, changed radar etc etc. A stealth plane is not an improved old plane but a new concept which starts with a new drawing.