Impressive race calender you have laid out. I haven't such a challenging upcoming season but am considering a, 10k swim and a half marathon in March before traveling to South Africa for Ironman. Having done Ironman Cozumel a few weeks ago I am still on the fence about signing up. I enjoyed the swim and the crowd support so the notion of returning is keeping me up at night.
Your running is strong which will help your cycling but the swim is important. Is the pool that you swim at indoors and are you doing any kind of drill work?