The TTB recently approved a label submitted by Beam-Suntory for Booker's 30th Anniversary Bourbon (see the picture above, taken directly from the TTB website . Carrying a 16 year age statement, this batch of Booker's would be more than twice as old as regular Booker's batches, and 5 years older than the previous oldest release, Booker's 25th Anniversary, which was bottled in early 2014 and was a blend of 9-11 year barrels.
Of course, TTB approval does not guarantee that the label will ever come to fruition and be released to the public, but in this case, although the release date is uncertain, you can bet on this release happening sometime in 2018, or at the very latest early 2019.
Named after the late Booker Noe, 6th generation Master Distiller for the Jim Beam Distillery in Clermont, KY, the brand was first made available to the public with a limited release in 1988, and until his death, all of the barrels for his namesake bourbon were hand picked by Booker Noe, occasionally with a few close companions (dubbed the "roundtable"). Today, that tradition is carried on by Booker's son and current Master Distiller Fred Noe. All Booker's batches are bottled uncut and unfiltered.
We'll update this post as new information comes available.
***UPDATE*** According to a source with ties to the Jim Beam Distillery, Booker's 30th Anniversary Bourbon is projected to have an MSRP of $349.99 and be released late 2018 to early 2019.