I'm sort of apprehensive about the upcoming release, but I actually like some of what I've heard so far. We have a good chance of losing a bunch of special characters, and they will certainly be missed. Similarly, I imagine a lot of our arcane wargear will bite the dust for the sake of the "streamlined" style they've been doing. The rumored talos-titan is sort of meh. I expect a cool-looking model that will make little sense alongside faster dark kin units. The price will probably prevent me from buying it, but it will probably go well with webway portal shenanigans.
The power from pain shenanigans sound like they could be fun, and I'm relieved to hear that something like it will still be a big part of the army. Same with combat drugs (I feared they'd vanish). The rumored cronos power to improve feel no pain sounds snazzy, and I'll be happy I stuck it out with them if they get it.
Rumors of having a supplement for wyches and covens gives me mixed feelings. On one hand, I like new content, and it will be nice to see them fleshed out more. On the other hand, I'll hate feeling compelled to pay $40 for a handful of content. I've mostly remained untempted by the splats until this point. Also, it would have been nice to see expanded scourge, mandrake, or harlequin content instead. Alas, perhaps another day.
Vect as a LoW is going to be a pet peeve for me. Drazhar made more sense in that slot since Vect actually supports your army asa whole while Drazhar is our mute killing machine. It just feels a bit lazy. "Hey, Vect's in charge right? Okay. I guess that makes him a Lord of War then." Silly, but there we have it.
Cheaper incubi models will be nice as I keep wanting to run an incubus shrine army.
Rumored changes to blade vanes (making them a boost to hammer of wrath rather than a vector-strike-type-thing) will be weird. I guess it doesn't really hurt the unit (you can still jink and not care), but you're exposing yourself to retaliation from the enemy in melee, even if the bikers end up with hit and run. It switches the unit from a harassment role to a melee mop-up unit like shining spears.
Torment grenade launchers as a leadership targeting shooty thing sounds neat. Probably not worth the points unless they're also pinning (and maybe not even then), but it would combine in interesting ways with our leadership-modifying gear.