Adding notifications instead of getting email

Will S|B go over to notifications in the future? Now I get emails if people comment on some of my stuff. I get a lot of e-mails in general. Could it be a good idea to implement notifications on the page itself (Same style as Facebook has..) ?

Moving information on to the page itself rather than sending e-mails would be great for me. If there is something I would like to comment on, but don't have time right now I could always just check back on previous notifications rather than going through my e-mails again.