Advent Comic #4 and the fate of Advent Shadow.
Advent Rising: Rock the Planet #4 was released on Wednesday, April 5.
Also, this is some old news, but hasn't been posted on the blog yet. Advent Shadow, the sidestory game outside of the main series of Advent Rising, along with other Majesco PSP titles, has been cancelled according to IGN.
IGN article
thanks to Sir_Brizz for the link.
One more thing. According to Rob Worley, Donald Mustard's new website is now active. Notice the email address.