A special Dishonored 2 Collector's Edition will be available when the supernatural sequel hits shelves on November 11 of this year, and I feel I can safely say, this is a good one. Along with the game (of course), the Dishonored 2 Collector's Edition will come with a poster featuring the supposed usurper, "Delilah Kaldwin," as well as a replica of Emily's ring and Corvo's mask.
Bethesda also noted that pre-ordering the game digitally will net you a free copy of Dishonored: Definitive Edition. It's not quite clear if you'll also get that if you pre-order the aforementioned Collector's Edition, but it would certainly be nice to have more Dishonored and not less.
As for cost and when it'll be available, nothing was confirmed on-stage. We'll do our best to hunt down that info for you, but in the meantime, check out every announcement and full summary details on our Bethesda E3 press conference page.