Do we seriously need artifact 2.0? Yeah, yeah, I know nothing is final, in fact there is close to no information regarding it, as the whole idea doesn't even seem to be fleshed out in any way, but I am speaking just... conceptually (?).
We all got to acknowledge (on numerous occasions) the fact that once Blizz is on to something, nothing will (or at least... not soooo very easily) will make them change their mind. Even if the mystical "majority" of WoWs community is against something, but Blizz thinks otherwise, it will sure as hell pass.
Remember garrisons? Yeah, most people either didn't care too much or even pretty much hated it. Sure, there were some people loving such "feature", but there always are, even for weirdest ideas.
In Legion (and they are still "empty" in a way, sure now there are players running around instead of NPC, but the interactions aren't all that much improved as there are simply no reasons to), we received them again. Quite heavily changed, but the core idea remained. Now there is a question; an economic one: was it all really worth it?
Imagine how much work did it take to create 12 of them, along with the quests for them and artifact weps. They aren't "bad", but for me the answer is just no.
Legion gave us mentioned artifacts 1.0. Again; were they even that good?
None of my "circle of friends" was somehow amazed with whole system. Just normal: It is what it is- this is what we are playing. But, certainly none was like: "ooooh what a great system, glad we have it !!1!1!!!"
Whole system felt more like vanilla wow style talent nostalgy more than anything else.
Current plans for Artifact 2.0 seems to be based kind of Netherlight Crucible traits and the way they work, but again nothing set in stone as far as I understand. Well, I am not such a big fan of that "RNG" lottery either. Except, perhaps, you will be able to "respec" these traits. I mean, we already have a talent trees, 2 in fact, do we need another one, an RNG one this time?
As for the HoA itself. I think it would be better if the items this artifact interacts with were all jewelry instead of some random armor pieces, that is 2 rings and 2 trinkets. HoA itself is a necklace so it kinda makes sense in magical world that it could interact with other worn or close gems. Rings would be responsible for some passives improvements and trinkets would improve active abilities/provide some abilities themselves (like active trinkets already do), for instance.
Personally I just hate how the trinkets rarely "work" with the class/spec I am playing. By work i mean both, the theme (some arcane damage, sell effect for warrior etc) and general gameplay/class mechanic interaction.
This way it would be a great replacement of current "tier bonuses" too.