Well
The title says it all :
Please allow the Nuage Dante IO to connect with a Waves Soundgrid DSP server …
This is impossible right now. The only way is to use Digigrid IO …
That would kick Protools-HDX’s ass 
I’d love of a Nuage Setup + the power of a DSP Soundgrid Server (hundred of plugins).
Now also, Flux and Plugin alliance are available ! not only Waves …