Do you have some inside information or are you just speculating (pun intended) that this is likely?
Just their reply to joining their email list: "Hi! You will be the first to hear exciting developments about Ripple, including news, XRP giveaways, and more. Want to join?"
My guess is the next giveaway will happen from that list.
Let's hope you're right - will be great if that's the case. Money is made round to go round they say... (although XRP is not money just yet)