.
Ilkeston are only likely to be moved to the Southern League if there are more than four teams wanting to go into the NPL Premier via promotion from step 4 and relegation from step 2 to replace the four relegated teams. 

Relegated from National League North
At the moment there looks to be only one Northern team ie Darlington, likely to drop into the NPL . The other three teams likely to be relegated from the National League North are more likely the go into the Southern League ie Bishops Stortford, Gloucester and Banbury  

Promoted from NPL West
There will be only one Northern team promoted to the NPL Premier from the NPL West because Leek look set to go up and they are likely to go into the Southern League 

 Promoted from NPL East
One Northern Team Stockton look set to go up and into the NPL Prem. There could be one other Northern team but there’s also a chance Belper or Carlton could go up and they could go into the Southern League. 

Promoted from NPL Midlands
Whoever is promoted from this league are almost certain to be placed in the Southern League 


So, as things stand at this present time, it looks likely there could only be four Northern teams looking to go into the NPL Premier (ie Darlington from National League North, Stockton from NPL East and two from NPL West  to replace the four relegated teams - Therefore no need for any  lateral movements.

But most teams still have about ten matches to play so the situation could change.