Reading through MLB Trade Rumors, I stumbled across this good bit of news.  Richard Durrett talked to him at the Frisco game.

"We're on the verge," said Greenberg, as he sat near the Rangers dugout with some members of his family and watched the Rangers playKansas City. "It's not an exact science to predict closing dates, but things are on track to get done the week of April 19th." 

This is my first fanpost and I looked and didn't see one already, so I apologize if it was already posted or discussed.

Link