Datamined changes from current PBE release. Be aware that these changes are tentative and they might be changed or even reverted prior to the live patch.
Datamining only captures numerical changes. It doesn't capture changes to mechanics and bugfixes that may also significantly affect balance.
Due to the nature of how the datamining works it may also includes some of the changes that are already added to the live version in the most recent patch.
Updated: Feb 22 11AM
Live
PBE
Family
Family members support each other, reducing their max Mana and gaining extra bonuses.
(3) 30% reduction, 20% 
(4) 35% reduction, 20% 
(5) 40% reduction, heist on topside! After combat, progress the heist, increased for each surviving Family member!
0Family members support each other, reducing their max Mana and gaining extra bonuses.
(3) 25% reduction, 20%
(4) 30% reduction, 20%
(5) 40% reduction, heist on topside! After combat, progress the heist, increased for each surviving Family member!
0
Quickstriker
Quickstrikers move faster and gain Attack Speed, based on their target's missing Health.
(2) 20-60%
(3) 30-80%
(4) 40-100% . On target death, Quickstrikers dash to a new target and gain 222 shield for 3 seconds.
. On target death, Quickstrikers dash to a new target and gain 222 shield for 3 seconds. Quickstrikers move faster and gain Attack Speed, based on their target's missing Health.
(2) 20-60%
(3) 30-80%
(4) 40-100% . On target death, Quickstrikers dash to a new target and gain 200 shield for 3 seconds.
. On target death, Quickstrikers dash to a new target and gain 200 shield for 3 seconds. 
Black Rose Crown
Gain a Black Rose Emblem and a Spear of Shojin.
Gain a Black Rose Emblem, a Spear of Shojin, and a Cassiopeia.