Well, it was one of the stated purposes behind Marvel NOW!, but I don't know how well most of the titles have pulled that off. The only NOW! title that I've actually read (until SSM launches) has been All-New X-Men, which I think explained things well enough for a theoretical "new" reader to not be too confused.
Still doesn't seem to me like they were shooting for a jumping on point with this initiative. Even the synopses I've read for upcoming NOW! titles indicates that they will come with plenty of pre-existing baggage from the previous titles.