Anyway... everything looks great and I can't wait to try it out, although I'm slightly disappointed that the expansion only adds 4 new cards to each Arkham Encounter deck -- I was hoping for 7. Oh well.
Small-boxes as well as big boxes only add 4 per neighborhood(CotDP adds 5), except Dunwich Horror which adds 7.
Personally, I feel the Herald is a must to get the full flavour of the expansion. That is IF you use the permanent method. Temporary method'll have your sick to your stomach about the play even without the Herald I think .