Here are a lot of leaked images that are coming out for Orks right now. It includes seeing 9 troop slots and 3 HQ in the Ork FOC, and pictures of much more
Please remember that these are rumors.
http://grotorderly.blogspot.co.uk/2014/06/white-dwarf-21-wycieki-czesc-2-leaks.html
http://www.dakkadakka.com/dakkaforum/posts/list/4410/585556.page
translation below
A couple quotes from the Grot Orderly on the leaked images
The new dex will have an Ork specific FOC, 9 Troops slots and 3 HQ. Additionally it will be the first codex to sport new layout of Dataslates for each unit.
The other version is called the Warboss Edition and is going to be a limited edition. Apart from the normal codex in another blurb, second book with stories on famous Waaaghs of different Warbosses and 8 cards with some artwork. On top of that we will receive six objective tokens. It will cost us 100 pounds.
translations via deffrekka on Dakka
"Green Mob: Ork moral is working completely different in the new codex. Whenever a mob of orks don't pass a moral or pinning check they have to roll on the green mob table. this can cause some radical consequences (from fleeing to figthing each other).
Because Andy bought every of his mobs a bosspole, he was able to reroll on the green mob table and changed the result several times to a 1 'born to fight'. This was good for Andy, because this keeps his boys till the bitter end of the fight. (In the end they want to have the loot, does matter if some of them die?) This really changed the game, because one or two brave ork-warriors bound whole tides of tyranids in close combat."