You know what is boring. Talking about hypothetical scenarios. FACT remains IAF is going to rely for a minimum of 2 decades on the su 30Mki.
While the so called superiority of Western platforms is debatable, one thing we can ascertain for sure.
For the unit of F 35 add to that training and life cycle cost, IAF budget might afford may be 1 or 2 squadrons. That too at this price can we afford equipment equipment attrition.
Shifting to such platform will make IAF a white elephant.
Super Sukhois?
1.Propulsion-AL41F 176 kn of max thrust while also being more fuel efficient,hence increasing the range +more power = more powerful and bigger radars and other avionics.
2.Radar- TZHUK-AE FGA35 AESA,having a maximum detection range of 260 km for a fighter sized target ,and is much more resistant to jamming than current BARS.
3.IRST- After this upgrade it will sport the OLS50 QWIP based system with a max detection range of 130km.
4.DSDR- DSDR or digital software defined radio will after upgrade help in frequency hopping and secure communication,with less chances of interception and jamming.
5)Newer Cockpit – Newer Cockpit with LCD touch screens being procured from Israel most probably.
6)Reduced RCS- RAM coating will reduce the radar cross section of MKI considerably against surface to air missile threat.
7) Newer Weapons – ASTRA mk2,R37M,ASRAAM,KH59 MK2,etc.