After proposals were made in August, the improvements that are expected to enable racing at the Nurburgring for the next three years without speed limits. Most changes will affect spectator safety, but some spots on the track will be “smoothed” . The changes are subject to final FIA approval, but presumably they would not be announced unless the track had a good sense that approval will be granted.
For those that can read German, the announcement is posted on the Nurburgring web page here. Dale Lomas has translated and added a very helpful map to illustrate on his Bridge to Gantry website. Additional story on Dailysportscar here.