There's pictures of the Trooper in our Toy Fair coverage.
While I get why some collectors who have a Hailfire already won't care perhaps, the paintjob's new, the sculpt's nice, and it's intended for the main line, so I think some collectors are going to actually want this. Kids though are its main target, thus it has a battlepack planned specifically to go with the Hailfire Droid as well.
To me this is a great play pattern and it's targeted to the line that actually is selling well without collectors which is pretty key there.
I'm looking into one because it's really well done, and I enjoy RC as a hobby so this is interesting to me. The ability to control the missle launcher, etc. It's pretty neat. My only gripe's its scale but I'm willing to go with it as a different model of the same droid.
I can see kids wanting this to run over their Clones though, for sure.