But with sidechaining comes the dreaded problem of.......how do you sidechain? I use Cubase (5.5.3) and use either the VST3 sidechaining option, when it's made available by plugin developers, or the quad channel method. Options may differ depending on your DAW.
VST3 - what's good:-
Use it in any audio channel - mono or stereo.
Quick and easy to use. All VST3 plugins' sidechain inputs are automatically visible when you want to route audio into them (via sends etc.). If there was a WOW VST3 version you could just insert it into any audio channel, then, from any other audio channel, you can route a sidechain signal into it.
Many other benefits, but I don't want to get into them here. This is about sidechaining.
VST3 - what's bad:-
More work for plugin developers to create VST3 versions.
VST3 is a Steinberg standard. It's upto Steinberg what they decide to do with VST3.
Not all DAW support VST3.
Many other negatives, but I don't want to get into them here. This is about sidechaining.
The VST3 sidechaining option means that the plugin does not have to be placed into a quad channel to make use of external sidechaining. If WOW2 had the VST3 sidechain option and you wanted to make use of it, you could insert WOW2 within any audio channel you want to sidechain rather than being restriced to only using WOW2 in a quad channel bus.
Fabfilter make a great job of sidechaining with their VST3 plugins.
Please remember, I am taking this from the view point of being a Cubase user. Your DAW maybe different.
Do you consider sidechaining as major feature missing from WOW2? How would you like it implemented?