Attack choppers are going the way of the Hind. the Mi-28NE was proposed but that was still not found suited to the tempo the PA wanted. The Z-10 was (for the lack of a softer word)shoved down the Army AV throats by vested interests in the PA leadership but as such it is a Russian design if not for its appalling power to weight ratio.Indeed. There are big-ticket opportunities in Pakistan for Russia, though maybe not as flashy as Su-35, they're valuable in their own way.
For example, I am sure the Russians would love to push their attack helicopters. For one thing, we are not short of options in this department (hence our interest is not entirely borne from desperation), but a sale to us - i.e. an active COIN user (and budding COIN expert via ACE) - is a major stamp of credibility for the winning platform.
Ditto for small arms, light armour, that Ratnik soldier system etc.
The long-term necessity of the JF-17 is another area; should the Russians offer the RD-33MK, then Klimov would have secured a major market for the long and very long-term.
So at the end, in terms of vertical lift the interest remains in more Mi-17s.
What might be a future purchase is either more Midas or perhaps another airlift like the An-70 or otherwise as the C-130 ages(although EDA C-130s are more favoured).
We have zero interest in the Mig-29 since both it and the Su-27 were evaluated in their base days and the performance of these aircraft vis-a-vis their serviceability and avionics was found inferior as an overall package to western jets.