I talked to a few of the guys at Diamond Select Toys about an update. I was told no additional Battle Beasts are planned in 2011, so yeah, there's that.
On the bright side a lot of neat Minimates toys were shown from other lines, like a glow-in-the-dark pirate ship with tons of moving parts and a really slick APC that looks like it would be right at home in any of their Minimates lines. This year's promotional figures are pirate-based and quite good so far. (Thank you Mr. Oat.)
As far as I can tell no branded Battle Beasts items are on deck for a while, but I've got high hopes someone will take the baton and do a similar line some day soon.