Just judging from heresay, since Ivory hasn't signed his tender, a trade of any sort is still possible.

Once Ivory signs his tender, he can not be traded.

The final deadline for him to sign his tender is sometime in June (some claim April 19). I got this from a Mike Wallace article from last year.

If he doesn't sign, his contract amount starts declining, and the Saints still retain his rights

Once the Jets sign him to an offer sheet, its either the Saints match it, or the Saints get a 2nd rounder.

But since I couldn't find anything official, I get an F. Since most of the above is from trusted posters, I'm basically cheating off the smart guy sitting next to me.