Keep the franchise as it is now but trim off some of 'the fat'.
1. Remove the Brightons, plenty of alternatives on the Coastway line.
Seems sensible.
2. Curtail the Great Malverns at Worcester Foregate Street with terminators at Shrub Hill extended to Foregate Street to give connections to stations to Great Malvern and Hereford on LM▸ ? services.
Not so sure about this
3.Transfer the Greenford, Windsor, Marlow and Henley branches to Crossrail.
Greenford fits better with Chiltern
Crossrail have no diesel capability in the area so i see absolutely no benefit in this. Sure to make the services more unreliable.
4. Maybe hive the Reading - Gatwick service off to a separate company/franchise 'Gatwick Link'.
Where will they base their very few trains? Again few trains means less resilience.
5. Maybe hive off the Reading - Basingstoke service off to SWT▸ .
Could be a solution, but only if
GWR▸ have no need for any diesels this far East. SWT would have to base them at Salisbury which is still a fair bit away and current 158's and 159's based there are not the obvious choice of stock for Reading Basingstoke. If Salisbury maintained and very few units for this service - the same resilience problem arises.
In short the whole splitting franchise up into smaller chucnks reduces resilience.