Well, Rihanna, (concept album sounds interesting; and I want to see what new reinvention/style of music she can go for, I only started to like Rihanna once she showed how versatile she could be). Can't believe she's on album #8 in less than ten years. Almost as crazy as the fact she's been around for nearly ten years. What a worker!
Much like RiRi, Madonna's new album. I wouldn't say I'm EXCITED for it but definitely interested to hear what she's been going for.
Definitely excited for Alt-J's upcoming album too; really like Left Hand Free AND Hunger of the Pine.
Others...hmm. Going by wiki; new album by Grimes would be nice (first single GO is pretty good, a lot more crossover-mainstream than her older stuff), Karen O of the Yeah Yeah Yeahs' first solo effort should be out this year too, and I'm curious to see if Azealia Banks releases anything this year now she's bought herself out of her old record contract.
Nicki Minaj as well actually; I'm curious what direction she'll go; Nicki pop or Nicki rap or a mix of the two again like on her last album. And I wonder if Lady Gaga's jazz album with Tony Bennet will ever see the light of day too...