Can we direct it’s path into Mars? To help terraform Mars?
It’s nearly 600 miles in diameter, so, not at this time. :’) And adding its mass to Mars wouldn’t amount to much. Mars has about 1/8th the mass of Earth, and Ceres’ is .00015 the mass of Earth. Ceres is one third of the mass of the entire asteroid belt, so adding all those to Mars as well wouldn’t amount to much (.00045).
Or it becomes a great place for an interplanetary way station. Past Mars, not in Jupiter’s radiation field, low gravity, and now we know it has water.
Land on it, literally dig in, use it to create an orbital habitat.