I think this will flop. Mariah is talented, but has she been out of the game too long?
Three years since her last studio album.
The main issue is that she's been on a downward trajectory both in album sales and in radio play:
2005 - 12 million (2 #1s, 1 #2 (and would have been 3 #1s if one of the #1s hadn't blocked the #2, huge radio airplay)
2008 - 2.5 million (1 #1)
2009 - 1.25 million (1 #7)
She also had a holiday album in 2010 which has only sold ~750K worldwide. There are probably lots of reasons for this (not least of which: the 2009 album wasn't particularly good and Obsessed aside did not have very many radio friendly songs; it is thought by some that the singles choices after Touch My Body for E=MC2 were also poor but I don't really know much about that), but suffice to say she is in need of another comeback.