With the upcoming arrival of the ranger in gauntlet, I think we need to bring back ranger bonding.
The current set of weapons limits the possibilities and if more weapons are added for more classes and affinities, there would be too many weapons for gauntlet. This is why I think the team should bring back the basic weapons (gun, staff, sword, shield, dagger) along with bonding. The tactical decisions that would ensue would add a layer of decision making that is needed in gauntlet.
Bonding was a unique feature in Illuvium that let people express creativity and that would be even more the case in gauntlet.