The Su-24 used an external pod to use the Kh-58 (AS-11), but modern ESM systems would likely give enough information for an ARM launch.
The new radar should allow compatibility with a whole range of new weapons too, and if the system works out perhaps a new model Ka-31 without the under belly radar array but with front, rear and side mounted fixed arrays could be used with much faster scan rates (ie electronic scan in miliseconds) and of course LPI modes to reduce the signature of the aircraft.
On another thread Kratos1133 posted a poster showing new missile seekers and it included one with a 150mm active radar seeker that could easily be fitted to an RVV-MD or R-73 to give all weather day night capability... a sort of mini R-77.
This would be most useful for legacy fighters or a self defence weapon for attack aircraft like the Su-25 or helicopters. A bit more punch than a MANPADs but not as big and heavy as an R-77.