I hope they don't, and I hope they do more legendaries like the ring and cloak. Their stated philosophy with the legendary cloak is that it's a testament to the adventures and trials your character had in MoP when it was current. Characters that weren't around or active in MoP will never get the cloak. It dates your character and (imo) makes your character feel more unique - a veteran that's seen some shit, you know? While some may view the cloak as the game's first welfare legendary, I see it as being a part of the game's history. It's like a tangible "Ahead of the Curve" fear of strength, but for the entire expansion, not just a tier's final boss.
I don't know if they've said that they're going to handle the ring the same way, but I hope they do. There's something special about having a character with hard earned items that are no longer obtainable.