Syksy mentioned this in chat, but I think it's fantastic enough that it should be posted here as well:
This in particular, combined with the other items and design considerations he mentioned in his earlier posts, will be a great place to start CK from
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one idea I had in mind, is that maybe the old map could be discarded and people just credited using a relevant proxy of some sort; re-make the map with weighted turns based on their prior ownership of buildings etc in the old world, and give a corresponding amount of land/materials to re-create whatever they wish in the new world (just a thought)
This in particular, combined with the other items and design considerations he mentioned in his earlier posts, will be a great place to start CK from