I noticed a new edition of his early bestseller The Eye of the Needle in Waterstones last week and it appears that Pan books are doing new editions of a number of his World War 2 era thrillers. The other two books that will follow are Hornet Flight and Jackdaws.
I particularly like the theme of using the various maps in the background. Follett also has a couple of other novels from this era, namely The Key to Rebecca and Night Over Water. Perhaps new editions of those books will follow.