So what happened to this?
Will we see it in a future movie?
Was it retconned?
Homura goes full lesbian and gets god-tier powers, sealing Madokami away to give Madoka her normal life back.
Didn't really answer the question. Rebellion takes place after 100450177, when Homura's soul gem gave out fighting the Wraiths. It still happened, we just never saw the Wraith-period.
>Rebellion takes place after 100450177
Right, so the answer to all three questions is "Rebellion".