Rick Brannan has written a new book, Second Timothy: Notes on Grammar, Syntax, & Structure, which is soon to be published with Appian Way Press. The book provides a block-style outline and translation, treats major structures in the text, and comments on grammatical and syntactical issues phrase by phrase through the letter.
I have had an opportunity to see the manuscript and found it useful. Here is the blurb I have written for it:
“This is a fascinating study as Brannan comments on grammatical and syntactical relationships throughout 2 Timothy with comments on the implications for flow of thought and meaning. I am not aware of anything quite like this available anywhere else. This will be a great resource for anyone working through the Greek text of 2 Timothy.”
You can find information about the book and a couple of sample portions here.