I have mono/pink. It's a year round bag if you live in a warm area all year long imo. I live in the north, and every time autumn/winter rolls around, I wish I had a mono/black... But I have my de/saffron for autumn/winter lol sunny spring/summer days are for da/pink. Out of the three, my favorite would probably be de/saffron. It looks more sophiscated, whereas the others look more "fun."
Personally, I would get mono or empreinte over epi. Not a fan of how stiff epi is, but since you already have one, I'm assuming that isn't an issue for you. I love the blue/red combo in epi.
Assuming they don't cancel them, my SA showed me pics of autumn/winter neonoes. From what I remember, they looked like smooth leather in muted colors, like camel and a dusty blue. I think hardware was silver. If those sound interesting to you, then I'd ask your SA if they have any info.