PAK FA is a decade away.
MMRCA has not been signed & TEJAS will need a MK2 upgrade to be a real threat to PAF after 2016.
WHAT IS A HEAR AND NOW REAL THREAT IS THE CURRENT SU30MKI and the existing 7-8 sqds of 140+ mki and the soon to be inducted additional 130 fighters by 2015.
THE THREAT HAS JUST INCREASED WITH THE RECENT annoucement by HAL AND IRKUT of russia declaring a SUPER SU30MKI is and will be the stanadard flanker in the IAF. after 2013 onwards
Defence Security Report