Theoretically, an IBIS or OSS system could be used to reduce motion blur for a reasonably slow moving subject (think aircraft or vehicles in low light) when very fast shutter speeds are not viable. Subject tracking algorithms exist in the market, but are used for autofocus. The information they deliver would appear to be usable to follow a subject across a fraction of the frame using the stabilizer mechanism.
Is there any maker already implementing this, apart from Pentax' GPS-based (specialized) astrotracking features that have been around for a while?