Just seen this on the western mails website:
http://www.walesonline.co.uk/news/wales-news/2012/02/14/train-seats-could-be-halved-on-peak-time-rail-routes-under-new-franchises-91466-30324427/Not sure what to make of this as hopefully some common sense will prevail.
I do agree that some of the early morning London services such as the 05:58 from Swansea can be lightly loaded at times however some such as the 06:58 & 07:58 from Swansea are well used by commuters and if they are cut there no way
ATW▸ could cope.
I do like the idea of a stopping service between Swansea/Cardiff & Bristol
TM‡/Bath spa especially if it improves the case for extending the wires beyond Cardiff.