I'd personally just like for Expert roulette to be in some way "Expert". Like, original Pharos Sirius minimum ilvl Expert... Any dungeon, just hard, and perhaps with additional bonus challenges. Then you have 60 and 50 roulette, which you can only speedrun to make (very mildly) more difficult.

Apart from that though my only real wish is that when ilvl synced, gear is able to hold more than two secondary stats, and scale down the total of all stats on the armor (therefore including melded healer accuracy and tank strength) instead of just the initial two, and that anything accuracy beyond what is needed for the highest evasion mob in the instance is not transferred in the sync nor included in that total (so that we needn't keep a separate low-accuracy set for synced stuff).