I feel they should merge duty support and trust back together, that whole distinction seems incredibly unintuitive and pointless... Give the trusts 'levels' in the form of bond or something (not an actual level but some sort of figurative 'power level', such that they always sync to the player like chocobo), allow players to still do that, and just keep it one smooth system. Ideally giving those levels some more character / rpg elements, like WoW does lol. (FFXI's trusts have some levels and ideas too, we had a partner in 1.0 as well, a while ago I was referencing bioware-lite sort of situation).