I went through this exercise right after Christmas and came up with this list. Not all must-have's but I want to at least check them all out. So far Level 10, Jorn and Serious Black are not disappointing in the least. Soto is ordered but hasn't arrived yet and I'm REALLY looking forward to the new Eclipse and Revolution Saints discs.
1/20/15
Serious Black - As Daylight Breaks
1/23/15
Jorn - Dracula - Swing Of Death
Sweet & Lynch - Only to Rise
Level 10 - Chapter One
1/30/15
Soto - Inside the Vertigo
2/03/15
Orden Ogan - Ravenhead
Blind Guardian - Beyond the Red Mirror
2/10/15
Adrenaline Mob - Dearly Departed
Blackberry Smoke - Holding All the Roses
2/13/15
Nightwish - Élan
2/15/15
Revolution Saints - Revolution Saints
2/20/15
Issa - Crossfire
China Sky - China Sky 2
Eclipse - Armageddonize
2/23/15
Scorpions - Return to Forever
3/17/15
Europe War of Kings
3/31/15
Nightwish - Endless Forms Most Beautiful
4/07/15
Halestorm - Into the Wild Life
4/20/15
Talon - Fourplay
Toto - XIV
Kiske/Somerville - City of Heroes
Later in 2015
Pagan's Mind - Full Circle (Q1/2 2015)
Myrath
Seventh Wonder
Circus Maximus
Kamelot
Vanden Plas
Damnation Angels
Lunatica