It appear GW is going to turn these 2-army boxed sets into a regular "thing"
via [URL="http://feedproxy.google.com/~r/Faeit212/~3/0ijqKGlCUMU/future-of-campaign-box-sets.html"]Voice of the Chaos Gods[/URL] 7-9-2014
The [URL="https://www.facebook.com/mexork?ref=br_tf"]Mexican Ork[/URL] says:GW will release other Campagin Books with included old expansions from the softcover era. Storm Claw will be not the last Campaign based boxed set, every half year there comes a new boxed sets of this kind. This Sets can be imperial guard vs. eldar, blood angels vs orks or other Themes.
Stormclaw is not replacing DV, and is a Limited Edition set. The new minis will be limited to that box.