Season ending announced, new season starts at the end of March.
I got my tab this season, and that's good. During the summer I think I'll have time to get my final, pre-Necro tab. Messing around in HC right now, working on my UE grenade DH. Only one ancient item (belt) and still missing an ideal second 1H crossbow, cleared a 60. Won't try to go any further until my legendary gems are a bit better (most were ~30) and have at least one ancient weapon. UE grenades are nice and fun.
Probably roll another DH in Season 10. Looks like they're getting Marauders. The Conquests look a pain, but I only need two for the tab. Probably gems to 65 and six sets completing 55, using monk as the second class. Inna, Sunwuko, and raiment have a fairly easy time hitting 55. At least then I can hopefully share common jewelry and a couple other items.
EDIT: Hit rank 604 on DH NS HC boards with a 66. Wouldn't be on seasonal, need to clear a 70. There really aren't a lot of people on HC, it would seem. I would also never play a seasonal HC, I'm strapped for time as it is trying to get the stash tab on SC.