Head coach Kyle Shanahan said that Mitchell (knee) is on track with his recovery from an MCL sprain, according to David Lombardi of The Athletic.
Lombardi also added that Mitchell is expected to occupy the 49ers' final IR spot (with a designation to return) following Javon Kinlaw's (knee) recent activation from injured reserve. The 24-year-old's initial timetable was expected to be 6-8 weeks, so he is still likely to miss the rest of the regular season, but a return for the start of San Francisco's playoff run seems possible. Mitchell was performing well in a complementary role behind Christian McCaffrey before getting hurt, so expect him to reclaim that role when he is healthy enough to return.