I know no one else loves the fossils except me but here are the stat estimates anyway:

Dracozolt

HP: 100
ATK: 105
DEF: 90
S.ATK: 85
S.DEF: 60
SPE: 85

Arctozolt

HP: 100
ATK: 105
DEF: 85
S.ATK: 85
S.DEF: 90
SPE: 60

Dracovish

HP: 100
ATK: 90
DEF: 105
S.ATK: 60
S.DEF: 85
SPE: 85

Arctovish

HP: 100
ATK: 85
DEF: 105
S.ATK: 85
S.DEF: 90
SPE: 60

estimated from calculations based on leaker screenshots. INB4 bandwagon Dracovish fans