This weekend we are looking at a two box release, and no codex according to this. The only Ork releases we will see is a new artillery box set (4 options), and a Big Mek with Shokk gun.
Please remember that this is a rumor still, as there has been no official announcements.
via Grot Orderly
http://grotorderly.blogspot.co.uk/?m=1
this weekend (13th June) we will see a new model of Big Mek model with Shokk Attack Gun. The model will be 100% plastic and will cost us 20 pounds / 35 dollars. Additionally we will get a new artillery unit. A Ork Mek Gun with six Gretchin crew. From the parts in the box we will be able to make Smasha Gun, Traktor Kannon, Bubble Chukka, Mega-Kannon. Price: 25 pounds / 38 dollars.