Thanks for you interest, Nicolas. The final form of MIR Pro is still very much work in progress. As it looks now, MIR Pro will have to reside on your main machine, like a big meta-plugin, but with the ability to channel audio into it from the local machine as well as from a slave computer - even via LAN. It is no big secret that the underlying platform is Vienna Ensemble Pro technology; the whole idea of having a VSL-specific VST-host actually derives from the earliest concepts of MIR.
All of this may (or may not) change for the release version, of course. I know that this sounds pretty vague, but I don't want to raise your hopes, just to see you disappointed later. Thanks for your patience. :-)