These points are from some discussion between CMY and some other person i think.
R block is the only 5 Marla Block near to all main facilities in Phase-9 (Theme Park, even you can say Golf Course, etc.)
Only One Factory is connected to this Block (quite away from the main R block area with very minimum attachment)
No Near by Village.
I think there is an approach towards nala (From right side) and then towards bediyan road. (Avecinna Hospital, MEdical College, Country Homes,Bankers Society)
I had been working in the Govt Department, so i have idea that Nalla will be covered as they Covered in Samnabad Lahore (LOS). Infact govt has plans to cover all the nallas in Lahore.
Also you mention the alignment of Lahore Sialkot Motorway which is in line with this Nallah.
And there is Knowledge Park area to be developed with Phase-6, i have attached the proposed
location and Paper Working on this project is going at enough pace.(you can see on HEC Punjab Page).so, there is a requirement for road along this nalah.
Then this R block is near to already developed area (if you concider only 5 Marla Blocks), so here the development will be eralier and easy as R block is quite plain area (as i saw on google earth).
May be R block will be extended towards right side as there is only vacant land.