Those that attended (who had to be 12 years or younger, or accompanied by a child if they were an adult), witnessed a fully finished animated feature finished in the style and to the level of the Clone Wars series. Dave Filoni presented it. Clone Wars voice artists and a number of characters were featured so it seems to be set during that time period, but the story focussed on a group of young padawans and their adventure.
There was no Clone Wars intro news reel or music from what I have read, so if it was a series of cut together episodes, they removed any CW branding from it. Additionally, at least one attendee said he recognised none of the shots from the Season 5 Clone wars trailer as being from this arc. You would expect to see some of the same shots if thsi were part of season 5, right?
When I talked to Dave Filoni at SDCC, he told me that he was working on something that would be more child skewed than CW, which he admitted had drifted towards being much darker and grimmer than something little kids would watch. He knows I have younger kids who love SW, hence why he brought it up. At the time I assumed this was something that wouldn't kick off until after CW was all done, but I think it's safe to say he was referring to Young Jedi.
Soooo, when will the rest of us get a look? Will this be a tv special coming later this year? Is it destined for a DVD release? Is it the beginning of a new show or will it just be part of season 5 of CW after all? Intriguing! They've been very mysterious, but what a delightful surpirse if you were a kid at CVI.

I don't suppose Michaela, Matt, Kristy, Juliet or any of SWNZ's other roving reporters happened to attend?