The new route 23 schedule starts today. This essentially ends the 23 shuttle service, as well as service on Stenton Ave, due to the end of construction on Germantown Ave.
See the new schedule here: http://septa.org/service/sched/pdfs/bus_1_40/023.pdf
There is also a new 204 schedule, which has major revisions. Check them out in this schedule document: http://septa.org/service/sched/pdfs/bus_81_x/204.pdf