Welcome to the first script review period everyone!
We are going to start with a single script/analyzer combination to get things started gently and we may just stick to this model because after discussing things a bit more we decided that we are going to skip these public comment periods for many Bro scripts that are less user visible and we'll just make changes to them.
The FTP analyzer and ftp.bro script combination seems like a good place to start because it's mostly self contained and the feature requests shouldn't be quite as crazy and complex as for the HTTP analyzer and scripts. 
The ftp-ext.bro script that is still in my personal repository can be considered to be included in this review period too.
https://github.com/sethhall/bro_scripts/blob/master/ftp-ext.bro
Here we go....
FTP Analyzer and ftp.bro