Will the initial distribution of wealth in Bitcoin-PoS be exactly as per the unspent outputs in the bitcoin blockchain at a certain point in time in the future, or will you consider redistribution of wealth if you find popular support for it?
I would keep the blockchain as is. The best case for redistribution to add to Satoshi's social contract would be to make permanent the up-to-now unspent coins that Satoshi mined while alpha testing the live chain. Put this up for debate and see if Satoshi surfaces to comment. He could easily have disposed of, or overwritten, the private keys as they were used to create his stash of 980,000 according to
http://bitslog.wordpress.com/2013/04/24/satoshi-s-fortune-a-more-accurate-figure/.