We've had discussions in the past on whether or not Harbour Lights could release 'new' versions of previously issued-and-retired limited editions or not.
Other examples:
Southeast Block on the Move
Cape Hatteras on the Move
I couldn't find the original thread I started with the approximate title of "Could Harbour Lights reissue retired limitied editions...", but here are the threads that came up.
http://www.lighthousekeepers.com/cgi-bin/forumscgi/ultimatebb.cgi?ubb=get_topic;f=16;t=000006
http://www.lighthousekeepers.com/cgi-bin/forumscgi/ultimatebb.cgi?ubb=get_topic;f=1;t=000918
http://www.lighthousekeepers.com/cgi-bin/forumscgi/ultimatebb.cgi?ubb=get_topic;f=19;t=000005
http://www.lighthousekeepers.com/cgi-bin/forumscgi/ultimatebb.cgi?ubb=get_topic;f=4;t=000093
http://www.lighthousekeepers.com/cgi-bin/forumscgi/ultimatebb.cgi?ubb=get_topic;f=4;t=000299