Bundelkhand and rest of MP require better connectivity. Following new lines might be very useful (except which are mentioned above):
1. Khajuraho-Jabalpur via Damoh
2. Chhatarpur-Pipariya via Sagar
3. Mandla-Bilaspur/Anuppur
4. Banda-Fatehpur-Raebareli
5....
more... Lalitpur-Ashok Nagar
6. Sagar-near by Vidisha
7. Mahoba-Hamirpur