>auto-aim (magnetic) for melee, waiting regenerates full health, Bioware-inspired romances, attributes removed, and blood-on-screen when hit.
>only 4 armor slots, no spellcrafting, no levitating, no mounted combat. randomly generated fetch quests. classes removed.
>no crossbows, no traditional spears, no clothes under/over armor, no flails. linear quests with no decisions or paths. dragons respawn.
>consoles are focus platform, so no open interiors. also, game uses slightly modified gamebryo, and has apple-based UI.looks like F3 (uses same textures).
>fast travel. world is designed with fast travel in mind, so expect copy-pasta landscape again.
>fewer factions. only thieves, fighters, and mages guilds. dark brotherhood is only an interaction in the main quest.
>no vampires&werewolves, and no mounts besides horses. teleportation ladders remain, and quest markers remain. map shows entire world from the start of the game.
>heavy level-scaling remains. dungeon&exterior areas now lock on the level you first visit them with.
>less skills. no medium armor, no mysticism, no hand-to-hand, no athletics, and no acrobatics to name a few. also no diagonal walking/run animations.
>combat is Oblivion with finishing moves thrown in, with pointless dual wielding where you can't even attack with both weapons/spells at the same time, etc.