Nah, Alisaie and Alphy now match each other in jobs. A Sage is quite close to a Red Mage in other FF games, being able to use more magic then Red Mages at the cost of having less mp, slower and physically frail (more so then a red mage would). We don't quite know how Sage is going to work yet but I feel it'll try to match RDM, only being a healer instead.