Change "[User] has made the Achievement [Achievement]" to "[User] has unlocked the Achievement [Achievement]", "[User] unlocked the Achievement [Achievement]", or "[User] got the Achievement [Achievement]".
None of these come from legacy console, but the current message feels more like a leftover from "[User] has made the Advancement..."

Replace the Achievement screen with the built in one from Wii U edition

Craft max button/hold shift to craft max (not from console, just good to have)

Access to the hud, inventory, and crafting while in a bed instead of chat (maybe map wake up to the crouch button, or right click)

Sound for throwing items out of your inventory (pressing "Q" or moving an item outside the inventory gui)

(Option to) rename the "Statistics" button to "Leaderboard", maybe try to match the stats screen with the leaderboard screen's style

Potion level indicator

Remove sound and animation from hints
(Would probably also change how the crafting book popups appear as well, but those were not in legacy console anyway, maybe also remove those)

Add custom commands that allow for hints to appear with custom text and item pictures for use on custom maps and also the tutorial worlds.
(Maybe allow detecting what the player is looking at, how many times a player has done it, if it should reappear, time after doing something including spawning in, different options that can be set depending on what button/key was pressed, affect blocks when a box is closed (can be used for removing barriers like in the tutorial) etc.)

Legacy Console Minecart speeds