If you want the old KSK route, I hereby present 12647 Kongu SF Express! KJM to NZM, same route from YNK onwards
But seriously though, I agree with everything you said. Some other suggestions I would like to give:
1....
more... SWR should speedup the Toofan duronto (12213) and make it a daily train.
2. Should cancel the RSA between KK and Mail. In winter, Mail often gets delayed because of KK which gets 7-8 hours late due to fog in NR.
3. Should work hard to get back to the cleanliness standards it used to have (even just one year ago, it was great) especially for Shatabdi, Rajdhani and Duronto.
4. Must immediately review all timetables and remove excessive slack. Even the most premium SWR trains run with heavy slack and can easily be sped up by 2+ hours.