It's inherently different to change a reward system that effects all rankings than it is to change a limitation of a benchmark which only changes a very local problem.
Just as an example: changing the algorithm affects 3Dmark Vantage scores. Changing the HDD subtest limitation affects the PCMark scores performed on hardware platforms capable of exceeding the initial limitation (eg: not S478). It's a very local change.
Depends on how great the demand is. We're mainly focussing on fixing current bugs and improving existing features before adding a series of totally new ones.