Right now, they are proposing the removal of Ancient Legendaries, this is great news. I suggested this in my post: Please no more USELESS legendaries
However, they are proposing some sort of consumable that gives an additional affixes to rare items. This seems like it could basically nullify legendaries themselves…
I recommend an alternative, similar to my suggestion of elemental affixes instead of power (Add ELEMENTAL AFFIXES instead of Power), with ancient RELICS, they could give some sort of additional bonus to your skill-tree choices, but you can only consume up to 3 of these at a time. So sort of another take on passive skills, but reinforcing the skill-tree instead.
These relics could have different tiers as well, from a common relic, to a majestic relic, imperial relic, to an ethereal relic.