ANA will be launching 787 service between Tokyo and San Jose early next year, and they’ve sent out a survey about the new route to Mileage Club members. The email indicates that Mileage Club members will receive 50 miles upon completion of the survey.
While this survey was only sent out to select members, in my experience ANA honors the bonus for everyone with these types of surveys (and if they don’t, well, the survey literally only takes a minute).
While 50 miles isn’t a lot, keep in mind that ANA has one of the most useful websites for searching award space, and they require you to have a mileage balance in order to access some of the functions of the website, and this could fulfill that requirement. The survey will apparently be open through September 30.
(Tip of the hat to Sandeep)