Our friends over at Wowhead
some gear from the patch 5.4.7 PTR. Included are full sets of ilvl483 armor, cloaks, jewelry, and weapons. The source of this gear hasn't been confirmed yet, but it seems like the perfect starter gear for a brand new level 90. It's sufficient to get you started in the first few LFRs or random PvP battlegrounds at least. You can view all of these new items at the links below:
Remember that this is datamined information and nothing has been confirmed. However, it does seem likely once you consider similar quality greens are given to boosted level 80 characters from the Scroll of Resurrection promotion. We'll be sure to keep you updated as the PTR progresses.