One of the most neglected areas of recent times in the VSL universe is percussion.
It would be good to have some more dynamic Tam hits - none of the current selection are particularly forte. But the most needed missing articulations in percussion are pfps (swells). At the moment with timps for example you can either do a volume crossfade - doesn't work too well - or follow a crescendo with a dim (with slow attack) but it's a lot of extra work to create a frequently required articulation.
So extended percussion please! particularly revisiting the timps, orchestral bass drums, cymbals, tam tams and gongs.
Julian