WorkingHard
The details you want are in
Part J.
For non-airways users, the significant changes appear to be:
1) Substantial chunks of class A introduced to the north of the current extent of class A (over Cambridge, Newmarket, Bury St Edmunds, Stowmarket). Most is above 5500 ft, but some NE of the Stansted CTA is 3500 and 4500 ft base.
2) Reclassification of the TMA below 5500 ft over Stansted and Luton to class D.
3) Some slivers of the Stansted CTA returned to class G around Ware, Stapleford and Haverhill.
For those who do fly airways, there's some provision for crossing the TMA at low level:
12.2 As part of the TCN development, it is proposed to introduce three P-RNAV
based transit routes to enable GA traffic to transit the area at either FL80 or
FL90. The intention is to provide pilots of GA aircraft with consistent and
predictable routes within the area so that they can plan their flights with more
certainty. The proposed routes are:
• DET-MODMO-Airway M189-POTON
• DET-MODMO-Airway M189-ADMIS-LEGVA
• DET-MODMO-UMBAG