Although Goose Island Beer Co. officially announced its 2018 Bourbon County Brand Stout line-up last week, it seems there could be at least one more addition.

According to a keg label filed with the Alcohol and Tobacco Tax and Trade Bureau (TTB), the Chicago-based brewery is working on Bourbon County Brand Hazy Milkshake Stout 2018, an imperial stout aged in bourbon barrels with blended whole apricots and lactose added. This is the third BCBS variant to only have a keg label filed so far this year, joining Bourbon County Brand Horchata Stout 2018 and Bourbon County Brand Stout Tarte Tatin 2018, both of which were approved by the TTB earlier this month.

Last week, Goose Island announced its official Bourbon County line-up for this year consisting of eight different variants in 500ml bottles that will be released the day after Thanksgiving:

It should be noted that the fact that a label has been filed for a specific beer or beers does not necessarily mean that those beers will ever be released. In fact, Goose Island filed labels for two different Bourbon County releases in 2016 that have not yet seen the light of day: Bourbon County Brand Maple Rye Stout and a version of Proprietor’s Bourbon County Brand Stout aged in Scotch whisky barrels.

An email sent to the brewery for additional information was not immediately returned.