It looks like the Blood Angels will consist of the Terminator First Captain of the Blood Angels, the "shooty" Terminator box, five Death Company Marines and a Death Company Dreadnought. The Tyranids will have the limited edition Broodlord model, eight Genestealers, three Warriors and a Carnifex.
I certainly like the idea of having access to limited release models, but I'm just not sure this is worth it for me. The Terminators are really showing their age and I think will look pretty old next to the Blood Angels First Captain. The Death Company Marines and Dread are nice, but not awesome on the battlefield. The 'Nids... well, I don't play 'Nids.
I'll most likely just try to pick up the campaign book second hand off eBay.