Practically it would be better to have a default draft status on submission - like any content management system. But for those nominators who have everything in place ready to go - you could have two options - save as draft (gets submitted but not in queue) and ready for review (publish). Assuming Way(site) Wayspot Submissions and Edits will have this feature but PoGO could do with it now - especially if that submission feature is staying.
Mod. Topic by @8h20m