I don't really understand the limitation. Have they ever given any logical ingame explanation to why we can't equip more than two. It breaks immersion, but then again so does multiple difficulties, multiple versions of the same item and scaling too.
The only thing 3rd Legendary being equippable would do is removing a gear slot. Since player power is measured only in relation to other players, and everyone would run 3 Legendaries, no difference would be felt. Well, maybe it would be even more painful to catch up with an alt.
All of them will not happen. Will. Not. Happen. 3rd one maybe.
I think the only way we're ever going to be able to equip a third is if they make a distinction between legendary accessories (rings, belts, necks, bracers) or legendaries that don't conflict with a tier slot and other ones because they don't want us to have to choose between a 4 set or our best legendaries.
The problem is that then they'd have to balance a bit around having those 3 legendaries and not all specs have good non-tier slot legendaries. For example, I'm an aff lock and my BiS legendaries are cloak and helm, and our accessory legendaries aren't really that good with Prydaz being the best one. Compare that to classes whose best legendaries are not only non-tierslot legendaries to begin with, but have really strong accessory legendaries as well. Blizzard would have to take into account classes that could potentially take advantage of that too much by being able to use a current 4 set, a previous 2 set, and 3 legendaries at once compared to other classes who would only get a current 4 set, their 2 BiS legendaries and a throw away accessory legendary that's simply better because it's a legendary. And this isn't only a problem of balance, it's also a problem of the classes that benefit the most from it being hurt the most due to so much gear becoming "required" in order to do proper damage because Blizzard couldn't just leave them as being overpowered, so they'd either have to balance their damage around all of these gear benefits making them required or they would have to nerf the gear benefits which would be sad for anyone who has any of those pieces.
Storywise they should allow it at some point at the end of legion to do some big heroic deed in which our weapon and legandaries get oblitirated (like molnir in the new thor trailer) Thatll be fun
I'm kind of hoping that the pre-atch for the next xpack lifts all restrictions and we get to just be silly for a month before we replace all our awesome legendaries with questing blues.
So what's the point of letting us hoard so many and letting them rot in the bags for nothing? This is just silly.
I think that the 7.2.5 patch should include a 3rd, personally.
I am both the Lady of Dusk, Vheliana Nightwing & Dark Priestess of Lust, Loreleî Legace!
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<3 ~ I am also the ever-enticing leader of <The Coven of Dusk Desires> on Moon Guard!