Manchester Victoria station will be closed for engineering works over Easter weekend. Trains will run between Huddersfield and Stalybridge (some continuing to/from Ashton on Friday 30th), with then a choice of replacement bus to Victoria or connecting train between Stalybridge & Piccadilly.
It’s worth noting, since Northern haven’t highlighted it, that this affects passengers travelling between Marsden/Slaithwaite & Huddersfield. It will be a basic hourly service so the usual peak hour weekday extras between Marsden/Slaithwaite & Huddersfield will be withdrawn.
Link to timetable is here