Nope, they're never really announced before hand. Except for maybe a livestream the day before they launch. At the earliest, the next Booster Bundle won't be out until at least after the next Game Update comes out.
They are still struggling with the XB launch and getting the next episode ready. So I would not expect anything new/extra like a Booster Bundle for a while.
I hear you guys like solar auras? So we made the aura come out in 10 different auras! Still not satisfied? We will come out with a super super slim aura that is bright turquoise.
I hope no time soon. I mean at least two more weeks. I'm still stuck at work. I'm in Angola Africa on an oil rig. I get off work in about 2 weeks maybe in 10 days...we moving it on to a heavy lift ship. I got about 40,000 market cash and $100 on my psn. I'm holding it for the next booster gold...