You mean have the opening shot of IX parallel the opening shot of I? That is true! But I suppose that also depends on what the opening shot of IX will be as well.
Until then, I think paralleling ROTJ with TPM would be a good option, since they already share quite a few similarities, like the transport requesting permission to land, an interior cockpit shot, a ship landing in a hangar, etc.
I do think you raise a good point regarding symmetry between all nine films. While there are many parallels between the PT and the OT, the ST reflects the OT (and occasionally the PT) in many ways, I think it raises a question of if the trilogies parallel symmetrically, if that makes sense. Like a ABCDDCBA, pattern, like the Ring Theory posits (if that is a big deal for some). And if it doesn’t, is it possible to edit the films to “rhyme” more within the narrative of the Saga.