Here are all the names of the Android Operating system up until now AND what I predict they will be in the future.

• Alpha (1.0)
• Beta (1.1)
• Cupcake (1.5)
• Donut (1.6)
• Eclair (2.0–2.1)
• Froyo (2.2–2.2.3)
• Gingerbread (2.3–2.3.7)
• Honeycomb (3.0–3.2.6)
• Ice Cream Sandwich (4.0–4.0.4)
• Jelly Bean (4.1–4.3.1)
• KitKat (4.4–4.4.4)
• Lollipop (5.0)
• Marshmellow
• Nutella
• Oreo
• Popcorn
• Quaker Oats (??)
• Reece’s Pieces (maybe Ring Pop)
• Snickers (maybe Skittles)
• Taffy
• U?  hmm  Tough one
• V?
• Wafer
• X?
• Yummy
• Zagnut

Clearly, there are a few that are hard.  I wonder if they will skip some.  Marshmellow is a lock though.  Count on it.