I got 5000 miles for $8000 plus 4000 miles for the next $4000.

Separately, I got the More Miles Ahead promotion in the physical mail with an offer for 2500 miles per month for $5000 and then 1250 miles for hitting the bonus all three months. But, as for others above, the site said my card wasn't eligible when I tried to register. Might have been worth it if I could have stacked the two promotions.

Update: today (several days later) I got an e-mail stating I was registered for the More Miles Ahead promo with registration date of yesterday