According to Evan Drellich, the White Sock heading back to Houston in the Bobby Doran trade is a young SS/middle infielder from the Dominican Republic, Jeffry Santos.
Santos has been in the White Sox organisation for four years. He is 21. His minor league batting stats are not impressive: .219/.308/.269. He has made 53 errors in 133 games at either shortshop or second base.
Nothing official yet, so there may be more coming back Houston's way.