The DfT and Network Rail have published their consultation response to the Manchester Recovery Task Force consultation.
The result of this is that the Cleethorpes - Manchester Airport service, which due to lack of platform capacity at the Airport was, barring one daily service, cut back to Manchester Piccadilly in March 2020, will now be diverted to Liverpool Lime Street. There will be cross platform connections available at Manchester Piccadilly into services for the Airport.
There will be a further consultation over the finer details of the timetable and stopping points, although it is expected that after Manchester Piccadilly the newly extended Liverpool service will call at: Urston, Irlam, Birchwood, Warrington Central, Liverpool South Parkway (for bus connection to Liverpool Speke Airport - also direct connections with the Merseyrail Northern Line) and Liverpool Lime Street.
It is intended that the timetable recast will see an improvement in service punctuality across the north - indeed the Cleethorpes - Manchester Airport service was amongst three services highlighted as causing the most disruption which radiates across the north of England.
https://www.gov.uk/government/consultations/timetable-options-to-improve-rail-performance-in-the-north-of-england