I received the same email as @zhaile. Mine was from BorenAsia, and it asked about program dates, program costs, and financial aid. It also said to reply by the 10th.
Maybe they asked different questions because each region simply has different worries when it comes to budget/insurance. For example, I am applying to study abroad in Japan, so asking for insurance information is not necessary, because every student staying in Japan with a visa for more than three months is required to buy the Japanese National Health Insurance by law.
At the end of the email, they also wrote a small note mentioning that many applicants have budgets that exceed the maximum award amount, and that we should double-check that amount on the Boren page. When I received the email, I went to my scholarship office first thing in the morning to consult with them about how to reply and if I should provide more documentation confirming my budget. They seemed hopeful that receiving the email is a good thing.
I would assume that they would only send the email to people that they are considering, but do not think that you should worry about not receiving one, because there could be many other reasons why they only sent it to certain people. I might have received the email because my study abroad budget is slightly above the maximum award amount, or maybe because I made changes to my budget after the first budget update email and they simply wanted to confirm my changes. Who knows. At least we will find out soon.