Ok. Some info from the White Dwarf. Not much, no images because I've promised and the forum rules.
No PM with requests please - soon it will leak smewhere anyway.
Black Templars are back in the Codex SM, but seem to keep everything - Crusader squad is there, Neophytes too, Emperor's Champion as well.
Don't know about the vows, though.
The codex is MASSIVE- 176 pages, so almost twice as big as other books in this edition. Slightly more expensive, but seems like a good deal. Still FW books are cheaper (per page), but this book might be like the most flexible SM codex ever considering it covers the BT within its core rules (traits? Most likely).
Veteran boxes - Vanguards and Sternguards are separate boxes. Sternguards are a bit cheaper.
Both have massive number of heads, with helmeted and unhelmeted options.
Tactical isn't too expensive for so many new options including two of the new grav weapons.
Sadly, it seems there is only one Mk VIII Errant chestplate, but maybe I'll find more later.
Hunter/Stalker is a combi-set covering two AA tanks with different weapons.
Centurions are big and expensive, in a set of three - about the Land Raider price, but seem to come on 60 mm bases so like SM bigger (more options) KillaKans.