Had of course, Robert Reed not ultimately pass away (https://en.wikipedia.org/wiki/Robert_Reed#Death) in 1992, less than two years after The Bradys was canceled? I don't know as another weekly series given how short-lived The Bradys, The Brady Bunch Variety Hour, and The Brady Brides turned out, but maybe more TV movies in the vain of The Brady Girls Get Married and of course, A Very Brady Christmas.

I've did however, hear the rumor (https://www.closerweekly.com/posts/the-brady-bunch-spinoffs/) or reports that had The Bradys continued, Mike would've likely have been killed off in a helicopter crash (https://books.google.com/books?id=XRuwDwAAQBAJ&pg=PT238&lpg=PT238&dq=the+bradys+robert+reed+helicopter&source=bl&ots=UAhlLxgGFc&sig=ACfU3U0vRUFbjzN6Jgoo7QpfXViSS_o6sg&hl=en&sa=X&ved=2ahUKEwimhNet6oL1AhVDSN8KHRWyApwQ6AF6BAgOEAM). Basically, Robert Reed just like on the original series, was not on the same page with the producers and writers regarding where the show should go.