He has bounced on and off the Dolphins practice squad since then and will make his first NFL appearance if he's active on Sunday.
As for Traylor, the move to IR didn't mean much because wasn't expected to play anyway.
The only question now is whether he has played his last down for the Dolphins. The 37-year-old is scheduled to become an unrestricted free agent after the season and, considering the amount of wear and tear his body has endured through the course of 16 NFL seasons, it's entirely possible he'll decide to call it a career.
Even if he does want to continue playing, it's also possible the Dolphins will decide to go with younger at his position.