When I first wrote about The Sea of Cubic Dreams back in August (see here), it was a dreamy deep blue and teal, but now (possibly in conjunction with the Halloween season) it's more of a nightmarish blood red. (This is all dependent on your accepting the region's windlight settings.)
The installation has also acquired a temple-like build that I don't recall having seen there before (upper image). The interactive opportunity remains the same: get close to a cube, sit on it, and then give it a shove to get it sailing across the space — I recommend trying it in mouselook. No word yet on the previously announced larger expansion, Theater Night's Dream, which was to have been built overhead.