And as for a trilogy, I suggested on taking the bests parts of SUPERMAN III, and insert it into SUPERMAN IV -which would have scenes cut out, obviously- and create a new SUPERMAN III, that is actually continuing SUPERMAN II's story instead of sequeling it.
Maybe if a fan cut of SUPERMAN II ended like you said, with Lois knowing, and then the SUPERMAN III I mentioned ended with the amnesia kiss, and the whole film somehow worked around the plot so that Lois and Clark know each, then I'm in!