TfGM on their "Service Changes" listing show the X43 service run by Transdev Burnley and Pendle will, from 7th April, be renumbering the Sunday and Bank Holiday services to 872 and also be extending some services to Grassington and to Skipton, which will be very useful for day-trippers from the Manchester area to both of those two destinations.
Some X43 services will be renumbered 872 north of Burnley and will run though to Grassington. There has been 1 service a day which did this with the rest of the 872s just running between Skipton and Grassington but now it will run hourly.