While this is not exactly ideal, I think that I would rather take the extra issue and consistent art team throughout than a rushjob with a bunch of fill ins. This series will read really well when collected, and if the quality holds out over those last 4 issues, it will easily be the best standalone marvel event in a decade (since Annihilation).
As for potential spoilers thanks to ANAD Marvel's launch, those were probably going to leak before book 8 launched anyhow.
As for potential spoilers thanks to ANAD Marvel's launch, those were probably going to leak before book 8 launched anyhow.