I'm sure they'll probably keep the WotC brand around, at least for a while, but it's still a scary thought lol!
Honestly, my biggest concern would be over the prospects of the OGL. by changing hands, there's the very real possibility (albeit likely a very small, but still possible) of changing the OGL to the point where it's practically useless. Disney is quite fairly known for being rather stingy, even more so than WotC's litigious bent.
Aslo, Hasbro is technically a game company that happens to also produce toys, so it's not a far stretch to own a brand such as D&D
Honestly, my biggest concern would be over the prospects of the OGL. by changing hands, there's the very real possibility (albeit likely a very small, but still possible) of changing the OGL to the point where it's practically useless. Disney is quite fairly known for being rather stingy, even more so than WotC's litigious bent.
Aslo, Hasbro is technically a game company that happens to also produce toys, so it's not a far stretch to own a brand such as D&D