Has there been any talk on Japanese TF boards and websites about a Binal-Tech Tracks being painted blue? Is this Blue Tracks just a Hasbro rumor? Has Takara said anything about it?

Nothing as yet in Japan.

Ditto here too...
Maybe it might show up in one of the JP auctions if the stuff is true....?

So far Takara seem to have been pretty good at preventing their protos from leaking... Unlike Hasbro.

I'd say the yellow will show first, the blue further down the line.

I found this in auction...

Yeah...that guy sells on Ebay with the ID of "kenscollection*com" I guess "kaigaishouhin*com" is the ID he wanted to separate himself for on Yahoo Japan

Same photos, just different watermark. I bought the Rx-8 off of him already.

Yeah I noticed when I checked some of the Ebay auctions (just in case).
I later bought crap loads of stuff from him too...