I think considering the amount of salary and that he is on his last year of his contract, I think it is highly optimistic that we can get anything higher than a 4th-5th round pick for Warford.
At that point we have to consider what is more valuable to us, to keep him for another year and let him leave as a free agent, or trade a low draft pick this year.
We may get a better (compensatory) pick then what we may get by trading him this year.
Right now, I can see Warford leaving on a trade, only he is used to go up some spots without giving away picks, or using him and a pick to trade up.