The Deluxe Edition gets you several cosmetic and one great in-game mutliplayer bonus. You’ll get three unique Helmet Crests, a special execution sunbeat effect, a deluxe edition emblem, and 7 days of Champion Status. These 7 days are going to be quite helpful if you spend time in your first week of gameplay. Champion Status grants you an extra 25% to experience gained, extra loot from battles, and more bonuses.
There is no Ultimate. There is Gold. The Gold Edition covers the Deluxe and tops it with the Season Pass. Some of the SP content will be available on Day 1, and this includes 3 scavenger crates, an exclusive emblem, a sunbeam emote, and 30 days of champion status (plus you still get the 7 days from deluxe). All this and you’ll get 6 new characters with their outfits when they release at a later date.