Glad to hear about CATCHING FIRE.
As far as OAR preservation is concerned, I guess it should be noted that all of the Imax footage from THE DARK KNIGHT and THE DARK KNIGHT RISES is presented in the original 1.44 ratio as a supplement on the box set. In the movies themselves, the Imax footage is cropped to 1.78.
Also, in the weird Imax ratio department, the Imax footage in STAR TREK IN2 DARKNESS was cropped to 1.66 theatrically, despite being shot in 1.44.