We know[1][2]. But the codec will be ready only in 2015~2016[3][4].
[1] https://trisquel.info/en/forum/great-news-regarding-open-codec-daala [2] https://trisquel.info/en/search/node/daala [3] http://gigaom.com/2013/10/15/monty-montgomery-joins-mozilla-for-daala/[4] http://www.reddit.com/r/linux/comments/1grbe8/introducing_daala_the_nextnextgeneration_free/can4eih