1. Yes PitchFactor can do a shimmer-style effect. It's called Crystals.
2. With the Quadravox effect you can dial in up to four different harmonies on top of your original signal. However, they are not meant to sound like an organ. They sound like your guitar. PitchFactor has several other effects that make your guitar sound like different instruments like a synth trumpet or analog-style bass synth.
3. There have been no announcements on this yet, but stay tuned.