Do you use any of ...
Par to Newquay
Truro to Falmouth
St Erth to St Ives
Oxford to Banbury
Reading to Gatwick
Cardiff to Swansea
Fareham to Brighton
Westbury to Weymouth
Reading to Basingstoke
Plymouth to Gunnislake
West Ealing to Greenford
Exeter St Davids to Exmouth
Twyford to Henley-on-Thames
Swindon to Westbury via Melksham
Maidenhead to Bourne End and Marlow
Worcester to Hereford via Great Malvern
Soutahmpton Central to Fareham via Eastleigh
Bristol to Gloucester, Cheltenham Spa and Worcester
Bristol Temple Meads to Avonmouth and Severn Beach
These are "white line" services not highlighted for any timetable changes come December. Which does
not always mean that there won't be any changes, as some/many/all will be adjusted to suit the needs of the coloured services on the following map with which they share stations.
Whilst we might have hoped that services on the white lines would be adjusted to ensure continued connections, that's certainly not always the case from data that I have seen; clearly something that's operationally sound is needed (and more trains on some coloured lines leaves less options for doing that), and then - seemingly second priority - is meeting the service level committement. Then there's what can be easily timetabled and that at times appears to come ahead of and drown out what the customers have been begging for. And finally, if you're very lucky, connections with the retimed coloured expresses may work.
I do hope that
GWR▸ have listened and adjusted the 4 minute connection off the TransWilts onto the West of England train every 2 hours. 4 minutes means it won't be offered as a journey on the journey planners, and that passengers who take the risk will have a long and uncompensated wait at Westbury. Good business for the buffet, but I expect the GWR will end up with some very very unhappy customers on days the TransWilts is delayed!
Not all bad news - there's a new 05:18 Westbury to Swindon (since the 05:17 Gloucester to Swindon is no longer there to feed the 06:07). But why not add an equal and opposite train at the end of the day in passenger service - say a train at 22:36 Swindon to Westbury rather than having an unbalanced service?
Suggestion ... many of the lines not being updated are community rail or ones with local user groups and now is an excellent time to help adding weight to any requests they have for small adjustment that would make a massive difference!P.S. Interesting that the map shows Cardiff to Taunton services and Cardiff to Portsmouth services reversing at Bristol Parkway. Planned, or misleading diagram??