According to this report
MMAWeekly.com has confirmed with sources close to Koscheck that the rumors about his UFC exit are absolutely false.
According the representatives close to the fighter, he has simply chosen to wait until after his fight to address any and all situations regarding contracts because he did not want a distraction while he was in the final weeks of his training camp getting ready for the fight.
I think I commented on this yesterday in the comments section. I saw a video in which all indications pointed to Koscheck re-signing with the organization. I mean it's not exactly like he has many options at this point either. He's got a decent fanbase that either love him or hate him, and he's pretty marketable. Below is the video I was speaking about yesterday: