Hi all, new poster here.

I've noticed since the initial XC related discussion within this topic from January, when the new timetables were uploaded, that XC have (according to what's on RTT) made further tweaks to the changes they're planning to make. I thought some people may find it useful if all XC changes were detailed here, so I've made this summary based off of what's changing to services through Chesterfield, regardless of whether the service is booked to call or pass non-stop.
The
Mon-Fri changes I've noticed are as follows in chronological order and I've also included details about what the change to the service is. I hope it's of interest.
HEADCODE - SERVICE FROM MAY 2025 - CHESTERFIELD STATUS FROM MAY 2025 - DETAIL OF CHANGE
1V82 06:24 York - Reading calling at Chesterfield at 07:31 - NEW
1E38 07:17 Derby - Newcastle calling at Chesterfield at 07:35 - CHANGED FROM NON STOP TO CALLING
1M83 06:24 Newcastle - Birmingham NS passing Chesterfield at 08:33 - SEE NOTE 1 BELOW
1S37 05:25 Plymouth - Edinburgh calling at Chesterfield at 10:05 - CHANGED FROM NON STOP TO CALLING
1V50 06:06 Edinburgh - Plymouth calling at Chesterfield at 10:08 - CHANGED FROM NON STOP TO CALLING
1V52 07:04 Edinburgh - Penzance calling at Chesterfield at 11:08 - TERMINATES AT PENZANCE VICE PLYMOUTH
1E85 10:27 Birmingham NS - Newcastle passing Chesterfield at 11:15 - NEW + SEE NOTE 1 BELOW
1S41 07:27 Plymouth - Edinburgh calling at Chesterfield at 12:04 - CHANGED FROM NON STOP TO CALLING
1V54 06:48 Glasgow Central - Plymouth calling at Chesterfield at 12:08 - STARTS FROM GLASGOW CENTRAL VICE EDINBURGH + CHANGED FROM NON STOP TO CALLING
1S43 08:27 Plymouth - Edinburgh calling at Chesterfield at 13:05 - STARTS FROM PLYMOUTH VICE PENZANCE
1E36 10:46 Reading - Newcastle passing Chesterfield at 13:15 - NEW
1S45 09:27 Plymouth - Dundee calling at Chesterfield at 14:03 - CHANGED FROM NON STOP TO CALLING + SEE NOTE 2 BELOW
1V58 10:07 Edinburgh - Plymouth calling at Chesterfield at 14:08 - CHANGED FROM NON STOP TO CALLING + TERMINATES AT PLYMOUTH VICE PENZANCE
1S47 10:27 Plymouth - Edinburgh calling at Chesterfield at 15:05 - STARTS FROM PLYMOUTH VICE PENZANCE
1V60 08:20 Aberdeen - Plymouth calling at Chesterfield at 15:08 - CHANGED FROM NON STOP TO CALLING + TERMINATES AT PLYMOUTH VICE PENZANCE
1S49 11:27 Plymouth - Glasgow Central calling at Chesterfield at 16:05 - TERMINATES AT GLASGOW CENTRAL VICE EDINBURGH
1V91 14:35 Newcastle - Reading passing Chesterfield at 16:34 - NEW
1S53 11:15 Penzance - Edinburgh calling at Chesterfield at 18:04 - STARTS FROM PENZANCE VICE PLYMOUTH
1M91 16:33 Newcastle - Birmingham NS passing Chesterfield at 18:34 - NEW
1S55 14:27 Plymouth - Edinburgh calling at Chesterfield at 19:05 - CHANGED FROM NON STOP TO CALLING
1V68 15:07 Edinburgh - Plymouth calling at Chesterfield at 19:08 - CHANGED FROM NON STOP TO CALLING
1E63 15:27 Plymouth - Newcastle calling at Chesterfield at 20:05 - CHANGED FROM NON STOP TO CALLING + TERMINATES AT NEWCASTLE VICE LEEDS
1E64 17:45 Reading - York passing Chesterfield at 20:15 - TERMINATES AT YORK VICE NEWCASTLE
1V71 17:07 Edinburgh - Bristol TM calling at Chesterfield at 21:07 - CHANGED FROM NON STOP TO CALLING
1E73 17:27 Plymouth - Leeds calling at Chesterfield at 22:12 - CHANGED FROM NON STOP TO CALLING
Notes:
1. Currently, 1M83 runs as 1V83 to Reading and then works 1E40 to York and 1M10 to Birmingham NS. From May 2025 1V83 becomes 1M83 which then forms a new 1E85 to Newcastle, a new 1V91 to Reading and finally a new 1M88 (20:42 ex Reading) to Man Picc. This means that 1E40 (11:45 ex Reading) + 1M10 (16:37 ex York) are withdrawn entirely.
2. 1S45 is extended from Dundee to Aberdeen on Friday's only, but this is not a new change.
3. The number of non-stopping/passing services through Chesterfield Mon-Fri will decrease from the current 23 per day to 12 per day.
Over on EMR, the only Mon-Fri change I can see is that the 21:41 Man Picc - Nottingham service (not via Stockport) gets recoded from 1L20 to 1L82. There are no changes to Northern and than a small handful of timing tweaks.
And finally, if you've read note 1 above, you now know that from May 2025 there's a new 1M88 20:42 Reading - Man Picc; the unit from this then goes ecs to Longsight as 5M88 at 00:30. However, the number of XC ecs workings onto Longsight remains at 4 both pre and post the timetable change. This is because 5M88 essentially replaces 5M54 which, instead of departing to Longsight at 19:12 as it currently does, will instead form a new 1G71 19:03 Man Picc - Birmingham NS.