This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
JDK 6 has just been released, work on JDK 7 is only in the early stages (it's only at build 6 currently), so it isn't surprising that there's no fixed list yet of what's going to be new in JDK 7. I don't know but I just don't believe that a VB-to-Java-bytecode compiler is going to be included in JDK 7.
If you want to follow what's happening in the development of JDK 7 then have a look at the OpenJDK Community website.