Both Pro and Elements introduce RestoreRig, a new plug-in suite that boasts three modules: the DeNoiser, DeBuzzer and DeClicker. The new "point" updates of WaveLab focus on spectral editing, offering an overhauled Spectogram with many additional display settings that give a meticulous attention to frequency detail. Here's their press release with the full details.
Steinberg has announced the immediate availability of WaveLab Pro 9.5 and WaveLab Elements 9.5.