Wirelessly posted (BlackBerry8703e/4.1.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/104)
Yes, you should be able to book oneworld awards as far ahead as regular AAdvantage awards. And I think if you book a coach segment on a business-class award, you can later rebook in business if award seats become available. But I'll leave it to those on this board who have more experience on oneworld awards to give the definitive answer.