More like the end of the Iloka experiment.
The fact that he's hardly being mentioned at all in media reports seems to speak volumes in terms of his success in TC. I haven't heard nor read anything about him being injured, either, so apparently, something isn't quite right with him and his contributions (or lack thereof) for the defense. I'm inclined to suspect you might be right about that experiment being one that might very well end with his release.
He's reportedly getting some "strong" reps lately, along with Donovan Wilson in camp. With Jeff Heath being injured, ot's understandable, although, he was getting the lion's share of reps before going down. Perhaps we'll get a better idea of what to expect when Heath comes off of the injury list. I thought Illoka was a fairly weak link to add to start with, though. The final cuts should prove interesting, no doubt about it.