The O2 Arena now has 50 open dates that it needs to fill. One potential replacement? The AP is reporting that an ABBA reunion may be one possibility. However, there is skepticism. Two band members, Bjorn Ulvaeus and Benny Andersson, claim that there is no intention for the band to ever play again. In addition, AEG has claimed that there is "no foundation" to the story. A more promising lead suggests that the O2 will be used as a venue for a star-studded tribute to Michael featuring the likes of the Jackson family. For now, they are focusing publicly on the Memorial to Michael Jackson. Time will tell what they have in store for London.