They didnt mentioned it yet. Actually, i am not sure how they will handle this. Yes, they did remove the ranks on i90, but nobody cares about i90 because its just random trash geaer wich looks like every other gear you can buy from npcs. You have to concider, that that gear isnt really pvp gear, its vanity gear in first place. What they could do now is either way removing the restrictions, wich would make people under Rank ~32 happy, but plenty of pvp players would get mad (Me too i guess^^) about it, because they got it the "normal" way and they obviously dont want that every random guy runs around with that.

Another solution would be, that they simply add new armor wich just looks like i70 or i90 (=not special) and make it for example i120 and without restrictions. Besides that they would add i130 pvp gear with rank restrictions (Rank 45-50). The restriction on the "old" animal gear would stay. This way they could prevent pvp veterans to get mad and on the other side "new" players could easily catch up with the i120 without getting the animal vanity gear like free candies.

But yea, nobody knows so far so we have to wait until they say something about it.