Too be honest, thinking about it, how will this ever work?
If its an act 1 only campaign, won't the monsters become to weak after half the campaign?
And if its an act 2 only campaign it'll be the other way around..
I'm really wondering why they feel they have to diverge again from the way the normal/mini campaigns work. They should really give us a bit more insight in how this will work in a new news post or something.
I think so far the community speculation has taken the word "full" to mean "9 quests," and I don't think that is necessarily the case. I suspect that "full" merely implies a full act, for the reason you point out- nine quests in the same act just isn't practical, no matter how you swing it. However, I fully agree that the wording is vague- but this is just a first announcement, and we have some time before Q4 for them to flesh out exactly what this expansion entails. I eagerly await more details.
Edited by Zaltyre