No I was just in there and the terrain seems to be fine as far as I can tell.
However, there could always be little hickups with a new version so be prepared for the unexpected. The CMs are doing what we can to test the terrain, new settings (arena setup has been changed to an extent by HTC), and to identify any issues before the frame. So fingers crossed that we already found everything (68Lurch and 68Falcon have been working since last night to iron out issues).