With either something useless or something required.
Most of the legacy 'support' was very poorly designed and they frankly had no vision on how it should work. Id love to see dps get more utility to provide the group, but i dont want to see poorly designed crap in the name of 'uniqueness'.
Id love plate dps and pet classes to be able to assist with tanking, id love hybrid dps classes to help with healing and id like to see everyone else get utility in the form of stronger CC or strong debuffs. I have pretty big ideas on that, id love to see more non dps focused utility brought into dps classes, but throwing in a plethora of fringe abilities is a waste of time, nothing short of sub-roles would offer meaningful additions imo. If it doesnt feed into the tank/healer/dps trinity it probably shouldnt be brought in.