The 2015
GWR▸ franchise refers to the Devon and Cornwall GWR mainline service being 2 tph except in those early and late hours where certain extended services eg to/from Penzance would remain operated by
XC▸ . In other words the overall service offer was a combined effort.
Then the very latest XC consultation (which is still ongoing) was proposing removal of those off pattern XC services but they’d have been replaced by the local
TOC▸ , in the case of Penzance:
West of Plymouth to Penzance: Great Western Railway (GWR) are enhancing service provision by introducing two trains per hour between Plymouth and Penzance from December 2018. This enhancement gives passengers west of Plymouth better journeys and connections. Cross Country services are early in the day eastbound and at the end of the day westbound, and some could potentially be covered by a longer operating day by GWR. (Note that we are not proposing any changes to the Summer Saturday-only services to Newquay).
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/714761/cross-country-passenger-rail-franchise-public-consultation.pdfIn the south they were proposing cutting back from Bournemouth to Southampton as
SWR» were adding more trains to Bournemouth. Hopefully that’s been binned as well.