Why on earth give people fewer ways to have fun?
Because with every army having 30+ items, it becomes impossible to know what your opponent might take. If every army book is paired down to 8 items or whatever, I have a reasonable chance of knowing what items are on everyone's list. I've long been in favor of them decreasing the complexity of Warhammer so that it becomes more managable to remember everything.
As for my predictions for the new Empire book...
Surely in: Runefang (hopefully reduced in price, so as to be playable), Griffon Banner (also hopefully reduced in cost)
Fairly iconic, but may get axed or rewritten: Speculum, Rod of Power, Sword of Fate, Mace of Helstrom
Pretty surely gone: Holy Relic, Armor of Meteoric Iron, the banner that makes you charge further (forget the name)
My rationale on the last group is that I doubt they're going to waste one of the severely-reduced number of magic item slots in the book on items that replicate effects of items from the BRB. Especially considering the BSB authors determined that a 2+ armor save costs 45, I don't see how AoMI stays in at the reduced price. And even though Holy Relic is still priced the same as the BSB item, I don't see the point of wasting one of our limited slots on an item we can already take (I know it means we won't be able to take 2 4+ ward saves, but I think that's how they want it). I'll be okay with losing AoMI at 25 points. Honestly AoMI, Holy Relic, Speculum is a pretty obvious "duh" build that I've always thought is overpowered. 2+ armor save and 4+ ward save costs 90 points for any of the new books, and that seems about right; if you want nearly-impenetrable defenses for you character, it should take almost all their magic item points to do so.