The super sukhoi upgrade is doomed to get delayed.
Reason
Russia Facing Difficulties in Supplying Airborne Radars: Tikhomirov NIIP design bureau that produced the N035 radar has been working on an AESA model, the N036 Byelka. A small number of prototypes of such radars exist, but that the transmit/receive modules (TRM) in the active array itself were built with foreign, US-origin chips acquired through surreptitious channels. Russian defence firms rely almost entirely on a small number of suppliers for components, like the firm Istok, located in Frayzino outside Moscow. Unfortunately for the Russians, that company cannot come close to meeting demand.
(Source: Trishul-trident)
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Now please don't come up with UTTAM AESA logic... an operational UTTAM AESA won't be available before 2027.