It would be a plain and simple (well, to use, not to write/code) effect module, with a button to load the IR file (a wav or aiff audio file) and dry/wet controls. This "IR file" would then be contained in the project file, so this is completely in keeping with the Sunvox self-contained/multiplatform paradigm. With this, we would have the perfect storm, this is so much better that what the usual, boring "no plugins" ranters have in mind
Amp, microphones, cabinet and speaker simulations, proper disto/saturations, real world reverbs and well, anything, there would simply be no limit to the type of sounds we could get from our favorite DAW.
Online code examples : Klangfalter and LV2-IR.
What do you say? Is it at least reasonable to even dream about it?
