A: I'm assuming you meant december 12, 2006 since 2007 is this year, & it's still January.
B: If I've got nothing else from watching this whole experience, it's that when things stay hush-hush....sh*t follows. Personally, I want Megatron to sound like Megatron....not like whatever "face" actor they end up getting. Frank's Megs truely was unique, & it sounded both ancient & metallic, which was perfect for Megs....& IMHO, especially this one. When I look at it, I hear a voice that nearly sounds like metal grinding, which is what the original Megs sounded like.
I think with all the backlash from the designs, Bay would have to be a fool to not use Welker.