I have not heard of any Bosnian media linking Cimirot with Atromitos. (As far as I know, Atromitos were only linked with another FKS player, Milos Stojcev. In fact, there is a 95% chance, IMO, that Stojcev signs with Atromitos.)
As for Cimirot and his quality, I think there is a lot of promise to this player. He is 22 and transfermarket puts his MV at 1.5 million euros. He has been linked with some not so bad clubs over the past few months, the best of them being Basel, Hamburger SV, Bursaspor, and Lille. He has two caps for the NT and seven for the U21 NT.
The Bosnian media is reporting that the sporting directors of PAOK and FKS are meeting tomorrow to negotiate regarding Cimirot. I'm guessing PAOK is offering 1 million euros and FKS is asking for 1.5 million euros.