The Bunkers invite the The Jeffersons to a party and invite Maude & her family and then Maude turn around invite Florida's family to come with her. Archie would have went crazy. George get into it with Archie and then with Maude & Walter and James Evans would laugh at George jokes and then the George would lash out at him. Edith, Florida, Louise, Gloria, & Maude would just sit back and watch the men argue. Then Helen & Tom shows up and send Archie into an outrage at the biracial pairing of the two.

That would have introduce All the shows and characters that got its start from All In The Family. Then Maybe George and Louise would make a visit to see The Evans on Good Times and Maude would visit the Jeffersons on The Jeffersons, and Archie would try to talk Tom out of leaving Helen for a white woman on All In The Family.

That would have been amazing

Norman Lear apparently didn't like crossovers, since we never saw Maude and Archie together again after Maude got her own series, the Jeffersons only came back to see the Bunkers for a few cameos and the Bunkers never visited the Jeffersons new digs.

And as fun as your suggestion may be, we never would have seen Florida and James Evans with Maude because when Florida was Maude's maid, James name was Henry! Go to the Maude or Good Times board and there is an old thread debating whether Good Times was really a spinoff of Maude or not.