I don't think some special force is being built around a specific weapon or something of that sort.
What can be happening is that a serious rethink has been done in GHQ and the realization that we are increasingly using newer technologies and methods that require more educated and trained manpower is needed.
I have had the opportunity to interact, over a two year period, with soldiers and officers of a western nation and it made me realize that their average education and level of intelligence was much higher than that of third world nation -- of course for obvious reasons.
The time required to train an average soldier with a High School diploma was drastically cut down than say that of an eighth grade education or an individual who has passed middle. Concepts and methodologies of a more complex nature were easily introduced, reading material was quickly understood, and very little time was needed to learn newer concepts in a class room environment.
More complex AFV's, Tanks, UAV's, MRAP's, requires specialized maintenance, Artillery (Incl. SP's) with more demanding computation software and hardware, battlefield management systems, logistics and supply management systems, Helos with more training intensive on-board mission hardware and software now requires more than average intelligence. Battlefield Tactical rockets itself have become a weapon system that requires specialized training and methodology not to speak of the strategic nuke group.
Normal attrition of personnel in both non com, and officer cadre would require training of newer batches. with training becoming more complex and requiring more by the manual training that would require more time to assimilate the material -- it would be prudent to build out a larger pool of officer corps.
But then one can not set aside the theory that there is a real possibility that the force being raised for CPEC would necessitate increase in Officer Corps.