Namco definitely received money under the table from Microsoft. For a Japanese developer to create a Japanese game for a system that sells under 5,000 units a week in Japan makes no sense to me.
I have the Hori Flightstick from the special Ace Combat 5 package, so I consider myself a (big) fan of the series. Hell, I got a AC5 poster on my wall. I'm still on my personal strike of Namco. I wonder how it makes Namco feel when they don't have my $60?
I doubt the Wii has the technical specifications to run a game like AC6.
Maybe we will see AC6 properly on the PS3, maybe AC7, I don't know.