As topic suggests, here are some new exotic perks to some weapons that I think would make exotics on, or near, the same usability tier:
The Jade Rabbit
New Exotic Perk: Bunny Hop
Scoring body shots grants up to 5 stacks of movement speed boost. Precision kills grant full stack of movement speed boost with additional ADS speed, reload speed, and ready speed.
Hard Light
New Exotic Perk: Spectrum Munitions
Weapon will automatically recognize enemy shields and munitions automatically become element needed to take shield down. Taking down a shield refills part of the magazine from reserves.
Prospector
New Exotic Perk: Six Feet Under
Rounds have delayed charge. Direct hit kills plant a mine on corpse that detonate within close proximity of another enemy team member.
Explodes after extended time.
MIDA Multi Tool
New Exotic Perk: Multi-Function
Holding RELOAD transforms MIDA into a rapid firing sniper rifle. Double tapping reload transforms MIDA into a SMG. Variable additions and subtractions to stats in each mode.
Sniper: Snapshot Sights, QuickDraw (added range, reduced stability, reduced firing rate)
SMG: Grave Robber, Kill Clip (added stability, increased magazine size, reduced range)
Huckleberry
New Exotic Perk: Running with the Bull
Fires a tracer bullet every third shot to mark targets. Marked targets receive more damage for 1.5 seconds. Marked targets within Huckleberry’s sight ramp firing rate and handling.