Another point, to help you make your decision: in 4e, a Sorceror with no combat spells doesn't just exist mechanically, it doesn't exist fluffwise either. Sorceror means you've got a wellspring of elemental burny-power. If your character didn't work that way, then their 4e incarnation simply isn't a sorceror.

As others have mentioned though, this is irrelevant, because all you've got there are rituals now anyway. Bard feels closest to what you had going.