Despite the Latics wanting Koumas off the books permenantly, the deal is likely to be a twelve month loan deal that would cover the fınal year of Koumas's contract with the Latics.
Martinez told the Evening Post: “It’s not done yet, because obviously there is an embargo situation with Cardiff City.
“So, until the FA tell us otherwise, we can’t really confirm anything. But we all hope the deal goes through and he does very well for his new club.
“It depends very much on the Cardiff end, but I would imagine it will get sorted pretty quickly. It’s something that the two clubs have been talking about, and probably Jason is ready for a new challenge.
“South Wales is an area where he is very well thought of, having previously played for Cardiff and for the Welsh national team.”