I do think it's good that the old Boomerang is getting a makeover. This is hardly my favorite type of coaster, but the new restraints should be an improvement (they seem to work well on Carolina Cobra at Carowinds). As for the onboard audio, well, we will see. A ride as short as a Boomerang doesn't really lend itself to this.
As for the makeover of the area, it is colorful. However, I don't think it's going to "age" well; that is, it's going to look dated very quickly.