I'm still very foggy on this...
Looking at the roadmap the title 'Radical changes to in game world' is tagged for August.
Then client distribution in October and 2.0 Beta in November.
This radical changes phase begins right after patch 1.23 goes live and three months prior to the official start of the Beta Phase.

So the part i'm still very foggy on is, 'what does Radical changes' mean in context of we will still be playing on the 1.0 client during this time.

o_O