Are any service trains moving to Mk5s on the Cleethorpes route in May, or is everything remaining unchanged for now?
As I understand it, the original plan was two diagrams from May, four from December.
Again, as I understand it, May is looking doubtful and ‘Autumn’ seems more likely.
That said, from May there’s an out and back turn on RTT from Longsight to Cleethorpes:
5B70 0803 Longsight-Cleethorpes (1152)
5B81 1324 Cleethorpes-Longsight
Clearly in as a training run currently but might be a passenger turn at some point over the summer.
When the Scarborough services started in August 2019, there was initially one diagram per day, out and back from Longsight, so Cleethorpes might follow a similar pattern.
Sorry not to have more definite information