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Major points:
Server migration; Avatar and their inventory transfer coding is mostly done.
Cities: All outdoor old cities will be wiped. Orgs will be given vouchers for new city plots. Well those orgs that found active member accounts to be Org leaders by the end of December will. Medium city plots are going away.. Citiy plots in 5 zones will be gone.
Engine upgrade: The new client is being tested internally with 18.7 game patch coding. Read the details in the link.
Half a dozen new environmental screen shots using the 18.7 client.
New tutorial zone isn't in the internal client yet but it's mostly done.
Steam overlay crash is on the FunCom side. It's not a high priority.
18.6 patch is the server migration,
18.7 patch is the Engine Update BETA