The 1942 only gives a connection into a Wolverhampton train from Birmingham up to and including Friday 8th December. Following the December timetable change on the 10th, the last train out of Birmingham New Street to Wolverhampton on a weekday will be the 2332 (which replaces the current 2335, and with the 0035 and 0142 not appearing in the new timetables). To get the 2332 you will need to be on the 1935 from Newcastle: the 1942 is much slower and from 10th December is due into Birmingham at 2326, so too close to 2332 for the journey planners to offer it as a connection (although you might be lucky).