Real time trains has some new services (some are extensions of services to/from south west Wales to Cardiff) running through to Bristol from December 2026 timetable

Example Fishguard to Bristol
https://www.realtimetrains.co.uk/service/gb-nr:L00529/2026-12-14/detailed

Looks like they will be worked by class 197 DMUs

In England looks like like stations served are Filton Abbey Wood, Stapleton Road and Bristol Temple Meads.   
Slightly intrigued by including Stapleton Road, but it is fairly east to park for free nearby so maybe it is for people travelling to Cardiff who object to paying for parking

I think this is first phase of proposed services calling at some new stations (usually referred to as Burns stations) along South Wales main line.

There is a rumour that rail growth in Wales will mean additional new trains will be ordered, so possibly bi-modes will get ordered for Burns station services

 
Interesting ... and that's the first full weekday of the Nationalised Great Western operation.   There is sense in calling at some of the lesser served stations such as Stapleton Road ...

Looking at other services for the new timetable I note: DMH MKM WVS

https://www.realtimetrains.co.uk/search/detailed/gb-nr:DMH/2026-12-14/0000-2359?stp=WVS&show=all&order=wtt - a failure to address the peak gap that was been created at Dilton Marsh last December

https://www.realtimetrains.co.uk/search/detailed/gb-nr:MKM/2026-12-14/0000-2359?stp=WVS&show=all&order=wtt - and no significant changes at Melksham (weekend services look unchanged too).

Bristol to Oxford remains every 2 hours

12 trains from Westbury (and mostly from beyond there) terminating at Salisbury, and 11 trains starting at Salisbury and running to / via Westbury
Early days, of course ...

 
Getting 'not found' pages for both those links

 
I can see John D's link, but as said, grahame's links not visible.

 

Sorry - my (coding) bad - it was expanding the MKM and DMH abbreviations within the URLs. Fixed.

 

Stapleton Road is likely to become increasingly important as an interchange, both to/from the Severn Beach line but also for Abbeywood/Brabazon services. I’m not sure that parking is likely to be a factor.

 
Plus these services stop at Pontyclun eastbound ut not westbound and last service from Bristol TM runs to Maesteg

 
These services are now showing as unadvertised station calls between Cardiff and Bristol

Example here, Bristol Temple Meads, Stapleton Road, Filton Abbey Wood, Severn Tunnel Junction, Newport (South Wales) all shown as unadvertised station calls

https://www.realtimetrains.co.uk/service/gb-nr:L00542/2026-12-17/detailed

There were test runs in middle of the night to Temple Meads, with 5 car 197 formation, calling at the stations few days ago

a quirk of schedule is seems to be timed at 90mph in England, but 100mph in Wales (although it might simply be it's been copied from a 158 schedule, as no timings for 197s to Bristol exist)

 

It's always been planned to go to every hour from next May, six days a week.  No plans currently for a Sunday service.

Delays to the 175 introduction might push it back, but hopefully not.

 
What impact might stopping these trains at Stapleton Rd have on the ambition for 4tph from Brabazon? Those relief lines are going to be busy, and single lead junctions at Narroways and the Hallen line won’t help…