If your tractor is outside, you might get some weathering and light rust on exposed metal. Seat cushions seem to take the worst beating as well as instrument panel gages. If the tractor is in the shade, I'd expect it to be as good as new. With either outside or inside, the battery should have plenty of reserve and no problems with fuel. If your battery is weak, it's a sign that you have a tiny drain somewhere because a new battery should hold a charge for much longer than two months. Keeping the battery clean and corrosion to a minimum will also ensure reliable starts and long battery life.
We've all had a hot summer, but the last few weeks of October have been just the opposite and very humid. With high humidity, corroded battery terminals are common. I suspect your tractor is so new that this is not yet any danger of being a problem.