I have just had another thought: Currently, the delay effect resides in the paraphonic FX section of each timbre. What about moving that into a global kind of effect, just like the reverb? You'd have much more memory available (six times the memory to be precise!), so the effect could sound for much longer, with less downsampling. I love the global reverb, but the delay is just too short, and too downsampled for my taste. The only thing I'd imagine using it for is slap-back delay, but that's just not what I love delay for.
Also I don't know if this is a realistic thought, considering the stage of development, but I think the effects would in general benefit of more memory, so I think it would be nice, if you were able to just disable featuresets you don't use, to make room for more effect memory. I for example don't use the scales system (or the whole SCALA menu for that matter), and now with proper DAW sequencing, I also don't need the sequencer at all. I never used the PFM as a midi CC interface, so that whole thing could also go out the window. I also don't use the User CC menu (what is that even for?).
If I had the option to disable those in favor of more performance overall, I'd do it.