http://www.vimeo.com/4057576
Above is a link to a preview video for the next version of Hipihi. As a result of my request another user graciously copied the video to the vimeo video site, which, for me at least, works immensely better than the various video sites located in China, so it should run fairly smoothly.
The next version appears to have cars you can ride in and doors that move, among other nice things.
I don't know when it's supposed to arrive.
There are dark spells in the video, presumably the result of Hipihi's rigid day night cycle, which I've felt all along is a serious mistake, both for average users who want to see the world around them, but also for making videos. Machinimatography without control of the lights - yuch, bad decision, Hipihi.
It appears that land editing allows for making caves or something similar; either that or you can deform a prim's mesh.
There are fluttering flags as well.
There's rain - I hope, though I don't know, that if there has to be rain, it won't be rain that goes through objects. Better no rain than rain that goes through objects.
The video shows a nice shiny effect, I don't know if that's new or just not something I can see in the current version very well owing to my lousy video card.