Finally a solo album by Westlife's Markus Feehily, he has been working on it for 3 years.
I am also interested to hear the debut by Meghan Trainor, I liked all the songs she has released so far and the new album by Imagine Dragons - the song Gold is brilliant:
From the ones that have been announced and already on preorder
Marina & The Diamonds - Froot
Indiana - No Romeo
Madonna - TBA
Years & Years - TBA
Mark Ronson - Uptown Special
Rihanna - TBA
The Ones Im hoping for in 2015 (unlikely or not):-
Fleur East - TBA
Florrie - Debut Album
Alcazar - 4th Studio Album
GRL - Debut Album
The Saturdays - 6th Studio Album
Britney Spears - 9th Studio Album
September/Petra Marklund - 6th Studio Album
Agnes - 5th Studio Album
Gathania - Debut Album