Are you assuming the first 12 months or financal year as they probably won't go on sale 1-Jan 2014.
What price are you assuming.........or should I guess at that?
Are you talking about to consumers or just into the distribution channels as the first hundred or so thousand will sell fast...........into inventory (say at Best Buy and other retailers) and warehouses (such as at Amazon).
Heck, how many sellers will there be?
Will these include the ability to install perscription lens (seems the best way to design just outside a user added perscription lens).
In essence, I think this would require a range and it would be "hard".
In reality, the first million or more will go quickly at almost any price.............early adopters, inventory, warehouses, etc. After that, it all depends upon the user experience and what apps the developers have for them.
Finally, if you are at LCOS sales, you also need to include Sony PlayStation Goggles and Microsoft xBox Goggles and these could be huge...............and perhaps start in 4Q 2013 as the Christmas season is key to them.