Groove Agent 4 announcement

Matthias, some questions.

Is this an in-house product, or will the swedes that made G1-3 be involved?
Will/can Steinberg reuse the material that went into G1-3?
If yes, can we please get all the old acoustic and drum machine stuff from previous, as a bonus?
If no, will it utilize the HALion engine?
Are there any particular areas in which we could help with ideas?