Hurley and Beltre are the two moderate surprises. Both have seen their careers derailed because of injuries, and Beltre missed several years when he could not come into the United States after a marriage/visa scandal. Beltre was more highly regarded than similarly marooned Alexi Ogando when both were allowed back last season, although Ogando has been the pitcher who has blossomed since then.
All of these players will become free agents, although I suspect that the Rangers will have some level of interest in bringing each of them back. Beltre was the only player of the five with options remaining, so even if the Rangers had kept these guys on the 40 man roster all season, they'd either have to be on the major league roster to start the season or would have to clear waivers.