Ratliff, who currently is on the physically unable to perform (PUP) list, is eligible to practice this week, but it's doubtful if he will because he's not fully recovered from hamstring and groin injuries.
"There's no question that's a possibility here," Jones said on KRLD-FM about Ratliff not returning. He wouldn't go as far as saying that Ratliff's time with the Cowboys might be nearing its end, as well.
"When you say done in Dallas, I don't know about done in Dallas, if you look at the rest of Jay's career, but certainly from the standpoint of this year," Jones said. "We've got a situation that's not positive as to him getting out on the field. We're gonna see as we get through this week what we're going to do technically, [about] his roster status."
Ratliff underwent a sports hernia surgery last December and encountered problems with Cowboys officials regarding his rehab. Team officials have allowed Ratliff to rehab at Valley Ranch and at another unknown facility. Last season, Ratliff was inactive for the first four games of the season with an ankle injury but returned in October. Ratliff suffered a groin injury in November and underwent the sports hernia surgery, ending his season after playing in just six games.
The Cowboys thought Ratliff would return in time for the 2013 season, but he suffered a hamstring injury while running the annual training camp conditioning test and was placed on the PUP list Aug. 27. Ratliff did some individual drills before the start of some training camp practices, but he still wasn't healthy enough.
Ratliff's status hasn't changed despite weeks of rehab, and now the team most likely will end his season.
"I have spoken with the Cowboys," Ratliff's agent, Mark Slough, told ESPN Dallas on Tuesday. "It's a fluid situation."
Jones would not rule out starting defensive end DeMarcus Ware (quad) for Sunday's game against the Eagles.
Sources have said Ware could miss three to four weeks but the Cowboys' star defensive end said Monday that although he's doubtful to play against Philadelphia, "I'm not going to be out that long."
"We'll be pretty conservative with that 'cause we know how bad we're going to need DeMarcus down the road, not that we don't need him against Philadelphia," Jones said. "So with that in mind, I can't tell you. It could be that he has the ability to go and has the playing ability to go on a certain basis as early as this weekend against Philadelphia. On the other hand, we may want to be conservative and make sure we get that thing in better shape."