Macros are extremely helpful right now, though it does limit how buffs can be stacked. Using the paladin as an example, it will make sense to still just use the Halone combo, using the new dps combo in an OT capacity or on bosses like the SV HM final boss. Though eventually threat could be maintained enough to allow for the dps combo to get worked in. Only using Halone is more from my experience in pugs.