I don’t know if devs will make a feature complete beta at the end of october.
That is what was planned but they have a lot of work according to workboard .
Multi-object editing for other object types than meshes
Complete Tool system with a satisfying UI
Working Overrides
Working modifiers in edit mode
Wireframe mode for viewport
Working physics
Adapting things that don’t work with collections, yet
There is always a huge feedback on things involving UI. Interesting ideas proposed by users.
Each time a tool will have improvement. Users will propose two or three other ones.
This changes Tool System Task to a kind of exponential amount of work and logarithmic user satisfaction.
So beta could be qualified as feature complete from point of view of devs at codequest time.
But it will probably be frustrating for users because some of their ideas will not end up in 2.80 but 2.81,2.82.
On the other side, some very popular user proposals will probably be adopted by deveopers but most of time that will delay completion of tool system and UI task.
They have one and an half month to reach beta status. I would not be surprised if beta was not totally feature complete or if beta was delayed to mid november.