Custom headerRenderer does not receive props to implement sorting

[ShantanuNair]

I would expect onSort, sortColumn, sortDirection to be passed on to the supplied HeaderRenderer by SortableHeaderCell to allow custom implementation of marking/triggering sort. However it seems like the current implementation of SortableHeaderCell does not allow us to customize the sorting functionality like, say, changing the way the sort state (ASC/DESC/NONE) is indicated.

Is this going to change, or is there a workaround/way to do it in the current canary?

[nanandn]

Will this be supported soon?