A Hacker class
Weapons: 4 Bits/drone gunners
Role: Summoner/field hack
Ability: Summons Turrets and Mechs. Can also apply traps around the field, which may dmg or debuff enemies.
Mech special ability: Dimension Hack, can open a warp gate from point A to point B. o. o
Personally I find SBO lore leaves a wide open options for new classes to come.