Facebook Likes
If someone likes and follows your classic Page, they will continue to be a follower for the new Page and added to your total follower count.
If someone likes your classic Page, but does not follow it, they will not transfer to your new Page as a follower.
If someone follows your classic Page, but does not choose to like it, they will still transfer to your new Page as a follower.
Page likes will not be supported on your new Page, and Page like count will no longer be accessible.