Any attempt at putting a MGHSH return should be sent immediately to the graveyard. The show was hot garbage because Mark Goodson goofed up the Hollywood Squares format. The concept of back to back in a block is fine, but as separate shows.
However, ABC needs to be careful, they already own a glut in the market, thankfully they spread the shows out so they can appear year-round, but you don't want too many shows on one network. CBS or NBC or FOX would likely have to swipe Hollywood Squares, which is a low priority because Nashville and Hip Hop Squares already exist.
As to the crack on Deal or No Deal, the concept of the blind luck does have gaming structure attached to it, such as Press Your Luck does. I sense you would've been a bigger fan of the short-lived Show Me the Money, which had a quiz game element to it but was a much worse show.
On the Joker's Wild, yes, the gussying up of the show was needed because Jack Barry and Bill Cullen ran it as a cerebral affair. Same for Pat Finn's, though his format was much more contrived and busy. The modern audience isn't looking for just the game only.