Hi! Had the same problem when I returned a month back. So many new stuff, but it's not THAT much once you really narrow down the vital stuff.
Check all gears HERE
First of all, Old Midas Whisper by itself will be a big help, but only when Overupgraded. The new item Cylinder Headband grants +60% more damage to CC as well as reducing its cast time by 100%. Midas grants +15% each 2 upgrades, so it's until +10 that OMW is stronger. Second, the weapon has lots to do too. +15 Crimson Mace seems to be the hot new toy, but I've also heard about Robot Arm, Valkyrie Hammer and trusty old Hurricane Fury still making the news.
For other gears, Mob Set (Mob Scarf + Sunglasses/Glasses), Tengu Set (Crow Tengu Mask + Tengu Scroll) and the brand new Seraphim Coronet are the hot debate topic in headgear. It seems to boil down to preferences, set up, style of play and preferred skill. Seraphim Coronet seems to be the winner for many, since it's just Middle Headgear and gives 250 ATK with 120 INT, a stat many Genes already had. Personally, I don't think it's worth the price tag if you're not running more classes that benefit. Even then, not sure. Mob Scarf is great in versatility since no 120 stat is required. Sure, it does not give the biggest boosts, but it gives super good boosts to AB mostly but still it's great for CC. It's what I'm using right now. Tengu set is where it gets different. The set requires 120 STR to work, so many Genes are trying it out. I admit I'm curious too.
FAW's are still in order, but now some roll EA4/2/1 because of Fairy Leaf Powder accessory. It gives bonus damage and After Cast Delay reduction. Another accesory is the Perverse Demon Mask, which gives bonus depending on your stats to other stats. But still, Sapphire Wristbands are still being rocked by many AB Genes and still helps lots with Instacast by Stats when not wearing Cylinder Headband. I like my Leaf Powder and Demon Mask combo. Another option that gets run is the Sarah's Earring with EA1/2 so you can use full EA FAW.
Temporal Boots are still the best ones, just between DEX and STR ones. STR is preferred for pure CC with high ATK weapons and Tengu set, but DEX is still great to AB fast and cut CC cast time. As for the enchants, Lucky Day for general use and Bear Power for when tanking stuff.
As far as new damage gears, I think that's the basics. I'm also learning, but that's what I've learnt until now. Do check other threads on damage and set ups discussions. They've helped me a lot.