RAWR-Player will support FLV, MP3, like before.
But it will also support MP4, MOV, 3GP, M4A. So long as these containers are using H264 video codec, and AVC audio. There is a few other containers that the player can support, but those are the ones I will be putting into the templates.
The next round of templates, with small fixes and the new player will come out as soon as I get some time after we launch the website. I am moving house on Monday 20th - Tuesday... hopefully we can launch the initial website before then. So expect the new releases within 1-2 weeks.