I dont think it would bother the new franchisee at all as long as it was known at the time of bidding.
I think the economics of running a few high speed trains a day over various scottish branchlines ( I know they are called mainlines in Scotland) must be horrendous- thats without having to fund replacement rolling stock.
Lets face it these trains along with the highland sleepers are run for purely political reasons theres noeconomic case whatsoever.
I am more than happy to hear the pros and cons of keeping or scrapping such a service, but I think your comments are a bit off the wall. I take it there are no mainlines in say Denmark because there are only 5 million people live there.
Economics are not too bad either, an HST at half capacity north of Edinburgh paying an average of £20 single a each works out as £5000 in the farebox for Inverness to Edinburgh, This train is hard to get a seat 4 months of the summer but working it out at half capacity all year round this would put £3,610,000 in the kitty, which i'm sure pays for this train to go north of Edinburgh. There is Staff accomodation, track access, fuelling movements, restaurants etc.. to pay for, but I'm sure it breaks even, and requires no subsidy. Overall (although not calculated as such) the West Coast daily services pays for the sleepers, but why shouldn't the profitable lines pay for the less profitable ones. Money made on Railways should be re-invested in Railways.
Using your branchline strategy,
why not close pointless stations like Appledore, it only serves a couple of Orchards, in fact close the line, its only a branchline, Ore Tunnel is too expensive too maintain ]. Doesn't add up, attitudes such as this would have a railway with only cattle vans running between profitable stations to London. Oh yeah, thats what happens in the south east anyway!
Serious I do not have any bias against the South East even if you think that nowhere north Watford exists. I am pro railways, and I encourage and support any development and improvement in the Railways providing its worthwhile and serves a purpose. But theres no economic sense in backward steps. Come up to the Highlands sometime, you will be plesantly suprised.