I play various classes, and as the sets are currently in game, don't feel hyped at any specific set, general 2-3-4 bonuses are "ok", some 5-6pcs are "okay" and some 7pcs make me "hmm".
I'll present my obviously flawed and subjective and variously biased ideas below. Many will most likely be totally ignored, but even if maybe few go through, some Sov sets might maybe improve. (or maybe something can be salvaged for Dark Promise in the distant future)
warning, some procs might seem OP as hell, but again, they can be adjusted/nerfed at any time, but the general idea is that grinding 1-2 years of cities should be rewarded with a gear where the 5-6-7 bonuses make you salivate.
Some sets may make more sense than others, on some I had more creative ideas, on some less. Please don't be too angry.
feel free to point if something is absurdly too much, might edit values etc. or if you come up with something better, just post your ideas as well, maybe something gets implemented some day
edited formatting few times, will try check later what errors I have at some points