Let's face it, we're not selling Williams or Jagielka in January. I can see Jagielka leaving end of season to drop down a division, probably have Williams stinking the place out for 18 months yet, but with Mori coming back, Keane hopefully retaining form, Holgate improving and a new centre back, hopefully Williams appearances will be severely restricted. Actually looking at that, with a new centre back it wouldn't make sense to have five centre halves, so see ya end of season, Ashley!
Mirallas will definitely leave end of season, Baines will retire with us imo in the next three years, with him becoming a sub from start of next session hopefully. Can see Klaassen heading back to Ajax in January very quickly.
Stekelenberg will hopefully leave in January, plus probably Besic either then or end of season. Sam will likely choose between McCarthy and Schneiderlin and sell the one he doesn't like. That'd leave us with McCarthy or Schneiderlin, Gueye, Davies, Beningime, Sigurdsson and Rooney for the central midfield defensive/attacking positions. Should be easily enough for the next 18 months imo, particularly if Davies and Beningime impress and improve.
We need a second pacy winger. Lennon can do a job from the bench, but we need somebody to stretch teams alongside Bolasie, and I hope this is addressed in January, as well as a to striker.
Martina will stay until end of season then be shipped out, but I think he'll probably end up getting another 10+ starts at left back due to Baines' form and injuries. I think we want until summer to get a good left back in, while right back is hopefully sorted for next 10 years with Coleman coming back (give him the armband!) and Kenny who is impressive.
I deem a pacy winger, striker and centre back as top priorities in January.