I doubt notch will keep his word but if he follows through after the 30 day deadline to restore the account passes, then he loses over a decade of tweets, the 4 millions followers he garnered in those years, and that coveted blue check mark.
He can't get those back even if he makes a new account. Minecraft was literally the only reason he got that 4 mil follower count but now that he's a recluse living in a mansion with rotten candy walls his only followers would be other neckbearded chuds. His ability to spew his bigotry would be extremely capped.
This would be a huge win. Fuck notch.