Just searched "Peter Wildoer" on twitter, trying to find out if he has a twitter page...
Only two tweets. One of which says "apa kabar Mike Mangini, Virgil Donati, Bobby Jarzombek, Terry Bozzio, Peter Wildoer, Thomas Lang sama Marco Minnemann?"
I don't speak indonesian very well, but that's seven different names, sans Charlie Z who Stevetheater insisted wasn't one of the seven, plus Bobby Jarzombek who I've seen speculated, but haven't yet seen confidently listed among the seven.
Obviously, this is some complete stranger halfway across the world from the United States - I doubt he has any first hand information, but it's a list I haven't seen, and which ties in fairly comfortably with previous rumours. Sounds feasable as a list of auditionees.
In a vacuum I'd call bull, and it's a hollow reference, but it kinda fits neatly enough with the other stuff we've heard that I'd give it more credence than your standard anonymous, contentless list.