Even on that Wiki article, under variants, it says:
"Il-78MP
Customized variant of the Il-78M, fitted with PS-90 engines and UPAZ refuelling pods for Pakistan Air Force. It's Tanker/transport as opposed to tanker only version, thus fulfilling the requirements of Pakistan Air Force for both transport and air refueling."
and under Operators, it says:
"Pakistan Air Force - 4 Il-78MP ordered from Ukrainian surplus aircraft stocks, fitted with PS-90 engines and UPAZ refuelling pods.[5][6] The first two aircraft are believed to have been delivered on 2 December 2008."
And here's a pretty reliable source confirming this:
Pakistan Eyes Boost in Transport, Lift - Defense News
"Though an Air Force spokesman could not verify the exact variant on order, he did confirm it was the tanker/transport and not the pure tanker version of the Midas."
Indeed. Airlift Capability shall be greatly enhanced with these 4 new IL-78s, which I am assuming, will be used for Cargo and Fuel only, not troops or personnel.
Our airlift capabilities currently stand something like this:
Heavy
~12 to 18 C-130 (at least 5 capable of troop transport)
4 CN-235 (3 troop transport, 1 VIP)
1 (+3) IL-78 (Fuel and Cargo only)
3 Boeing 707 (2 troop transport, 1 VIP)
Medium/Small/Utility
1 An-26
1 Saab 2000 (primarily for AWACs training)
If we are to assume that PAF will also purchase a Y-8 for ZDK-03 operator training, then it will be one more medium airlift aircraft. Overall, however, heavy-lift can still be improved because troop deployment between the Eastern and Western borders will now become frequent. Maybe PAF should look into purchasing a few Chinese troop-transporters soon.