Well.... -His other sons -the 5 (at least) other Hive Gods -the House of Kings (only house that has every piece intact and is the most dangerous of all the houses) -the Vex in general (their time manipulation will always play a key threat in this game) -the DARKNESS (we have yet to see anything of pure darkness. Oryx and the other gods are "of" darkness, but they are still Hive. We have yet to see this true enemy of the Traveller) I'd say we're good on main baddies for a while lol