I actually think that that the LoN DoT WD could be a good speed farming/bounty build. You don't even really have to do anything and the mobs will just melt. However, I haven't seen the LoN Crusader, so that could be interesting too.
I want to see those Monkey Monk's spamming LTK for Cyclones. I think MKG will have a place on the GR once someone makes the right build. Wizard support from Delsere could be a thing. Tempest Rush Monk will be great for Farming imo.
Also I personally plan on having fun with a Jade Harvester WD once the patch hits consoles, it's my favourite WD set so I may be biased but I find the build very fun to play
Oh and Arachyr will be fun when it isn't terrible anymore. Giant Toad used Lick! The spit and swallow thing was definitely not fun. Though I don't mind when the missus does it! Ohhh!
Farming - Invokers thorns build. I think people will use this for farming and prob for fun as well. as it is something people have wanted for a while, just hope to see a barb thorns build later too.
Its too nerfed to have any fun with thorns anymore.
Ye man so nerfed that it's still the highest clearing set,currently at 82 on seasonal LBs. I can accept that as a whole the set isnt fun but it's still one of the best performing if not the best from all the sets atm for all classes.