+1 on the ear-covering beanie!

Let's see...what about cool-weather gloves? Lobsters will be too warm (IMO) until it's below freezing. I love knickers for fall riding, and arm warmers, knee warmers, and a wind vest are indispensible for transitional fall temps. A Buff is a handy thing to have....neck gaiter, balaclava, beanie....anything you need it to be!

Depending on how cold the temps are that you're willing to ride in, a cold weather jacket and thermal tights might be necessary. I find that I like to have both tights and gloves of 3 different weights- cool, cold, and below freezing. A good base layer top can be worn to make a cool-weather jersey warmer, or alone under a winter jacket on a moderate day.

Just my two cents....winter dressing gets really individual, depending on your thermostat and level of effort. I "run" cold normally, but heat up very quickly on the bike, so what works for me might not be enough clothing for others.