2008–present: Milestones, real estate and return to live performance

Jackson issued the double-disc album Thriller 25, a 25th anniversary edition of Thriller. The set contained the original nine tracks from Thriller, re-mixes and a new song called "For All Time". Two singles were released to moderate success: "The Girl Is Mine 2008" and "Wanna Be Startin' Somethin' 2008". Thriller 25 was a commercial success, having done particularly well as a re-issue, peaking at number one in eight countries and Europe. It reached number two in the US, number three in the UK and top 10 on over 30 national charts. It was ineligible for the Billboard 200 chart as a re-release, but entered atop the Pop Catalog chart, where it stayed for 10 non-consecutive weeks and had the best sales on that chart since December 1996. After 12 weeks it sold 3 million copies worldwide. With the arrival of Halloween that November, Thriller 25 spent an eleventh non-consecutive week atop the US catalog chart. US sales of the album at that point were 688,000 copies, making it the best selling catalog album of 2008.
To celebrate Jackson's 50th birthday, Sony BMG released a compilation album called King of Pop in various countries. These albums included tracks from Jackson's group and solo career, all voted for by fans. The albums had different tracklists, according to how the fans of each nation voted. Although it was not released in the US, King of Pop did reach the top 10 in the vast majority of countries it was issued in. It also charted in other countries, albeit lower, from imported sales.
Fortress considered a foreclosure sale of Neverland Ranch to service a loan Jackson owed on the property, but ultimately sold the loan to Colony Capital LLC. In November, Jackson transferred the title of Neverland Ranch to Sycamore Valley Ranch Company LLC. It is unclear if Jackson still owns any stake in the property—Sycamore Valley Ranch is a joint venture between Jackson and Colony Capital LLC—the loan Jackson owed was cleared, he acquired $35 million in the venture.
From July 8, 2009 to February 24, 2010, Jackson is scheduled to perform 50 sell out concerts to over one million people, at London's O2 arena. According to Jackson's website, tickets sales for the concerts broke several records. During a prior press conference, Jackson made suggestions of possible retirement. Randy Phillips, president and chief executive of AEG Live stated that the first 10 dates alone would earn the singer approximately £50 million.