So this is sure going to be exciting news.
Unfortunately, I'm not a DDI subscriber and won't be able to provide a link for it.
All I know so far (from here) is that the Bard is confirmed to be an Arcane Leader and the gist of what's seen so far is summed up as,
1. bards can multiclass into as many classes as they like
2. there are new rituals specific to bards
3. the bard has quite a skill list
4. it seems to play like a ranged warlord mixed with an illusionist
The idea that the bard can multiclass freely is sure to get the min/maxer turning it to be their new favorite class and here I thought that the designers were trying to get rid of the multiclassing problem in 3.x.
So if anyone who has read it, consider yourselves as lucky bastards.