A stage 3 upgrade, turbos, is likely, as I hear it. If the S3 will carry the full BMW matching warranty is the question. They might consider it a "race/track" option that will not have the traditional coverage, though the parts themselves will carry a Dinan warranty, a 2 yr manufactures coverage is my guess.
Let me be clear...I'm speculating here, based on a few conversations I've had with some folks connected to the company who themselves were just spitballing.
