greatcoats are next year by the sounds of things.
A wee reminder that Chapter Traits were developed from the Guard Regimental Doctrines, which was a brilliant, if never fully utilised creation of the studios - since the codex was released I am only aware of 1 further doctrine being created and published, and it appears in
this online article.
I look forward to a new guard dex, as whilst I do like the current one (heck, I made a guard army because of it when it came out), a wee update to bring it in line with the new way of armys being composed and codex layout will be good.