There are going to be route changes happening as part of the new franchise let to Govia, covering Great Northern, Thameslink and Southern regions.
Given that is the case for that franchise, could something similar happen to the South West Trains franchise area once it's relet?
There are services from Guildford to Ascot but how about a direct Guildford to Farnham service?
A Surrey County Council consultation report mentioned the possibility of giving Camberley faster direct services to London by joining the mainline some point between Basingstoke and Brookwood. That would require additional track of course.
They currently run 3-4 trains to Bath a day. Could they increase this number further? Is their demand. What about Bristol which gets 1 a day?
Are there any lines the franchise could take over or run trains over? They use to run to Brighton. Southern run services from South Croydon to Milton Keynes. I don't suppose the South West franchise could run any cross London services? There probably isn't the space for them to do so. There use to be intercity style service from Basingstoke to Ipswich.
Although Surrey County Council would like to see better London bound trains from Camberley, it could only happen if they joined with another service as I would have thought that there would be other services which would bring in more passengers if there was a spare path into London.
Also the return journey would either require crossing the SWML on the flat (not a good idea) or building a chord. However, it would be much more difficult (read costly) to build a east facing grade separated junction at this location than a west facing junction with not much extra benefit (depending on which services it paired with or where it called at it could wipe out all the advantage of not having to change at Farnborough - see link below) in doing so for the London bound travellers.
However a west facing junction could provide addition benefits (including a diversion route for engineering works east of Farnborough) whilst still proving the demand for better Camberley to London Services.
I could see the perceived benefit of a "new" service running Ascot to Aldershot (pair up with a train from Alton) London Waterloo working, then with the existing Aldershot Guildford portion being run longer (i.e. further south or East than Guildford and/or further west than Aldershot). However running Camberley to Aldershot and then to London isn't going to save much time over going via Ascot, especially once you've added in a few minutes for joining the two services.
Also given that Borden is likely to have a service which pairs up with the Alton train it is unlikely that the two would be able to run together (maybe each being run as an hourly service so that the Alton train joining with each over the hour but never both in the same half hour).
Here are some other thoughts with regards to the west facing grade separated junction:
http://www.railforums.co.uk/showthread.php?t=103237
Although the chord would be going the "wrong way" it could enable a faster journey time as going from Camberley to Farnborough and changing for the next London bound train would only need to be be faster than 25 minutes (which is likely as it takes 15 minutes to get to Aldershot and I would have though that it is more likely to be closer to 10 minutes) and it is still faster even if the slow trains are caught from Farnborough.
Make it connect with a fast train and you could be looking at (even allowing at least a 5 minute change time at Farnborough) journey times of less than an hour rather than an hour and a quarter by going via Ascot.
If electrification to Salisbury were to happen I would expect that some of the services which currently stop at Basingstoke could be extended to Salisbury. Even if these where the slower services (with most people changing at Basingstoke for a faster train) it could bring a lot of benefits to the line between Basingstoke and Salisbury.
Such a service could even reverse at Salisbury and run the Salisbury 6 service (subject to electrification) so that it could be argued that that line would have a "direct" (in that they wouldn't have to change trains) service to London.
It would also mean that, as the line was more intensively used that the cost per passenger of the line would go down a little (i.e. although some elements of the infrastructure will wear out the more trains that runs along that section other elements will not be impacted by the extra services).