Issue: a player cannot partake in presales due to lack of preview of item being purchased. Yes, the option exists to purchase blindly, and I recognize that. (this feedback is not limited to the Civil War packs, as it has been an ongoing issue well before these packs)
Recommendation: Include previews of items being sold.
EDIT: since some posters such as @Kelador and @DarkBeast felt the need to state the obvious(which was already acknowledged in the original post), I feel the need to edit and spell it out further:
the approval time should be factored in to the scheduling of these projects to avoid this issue or at least alleviate it somewhat.