Now, the Las Vegas Review-Journal is reporting that parent company Boyd Gaming is planning to camoflague the site with landscaping and will place a "decorative wrap" around the ironwork. (Right now, we're thinking something along the lines of this.) The RJ states that the greenery should be up by December and the wrap a month later.
Earlier this year, local government officials granted Boyd Gaming a six year time extension on the stalled venture. So, your guess is as good as ours as to when Echelon will restart. If ever.