Lyoto Machida was a Keith Jardine win away from facing Rashad Evans, but now he's a fighter without a fight (unless Rampage decides he'd like a BJ Penn vacation). The UFC could let him sit on the sidelines while Evans/Jackson pans out. Or, they could give him another fight. Kenny Florian was in a similar situation last year and he ended up fighting Joe Stevenson rather than waiting around for St-Pierre/Penn to happen. I think Machida will end up getting a fight because the UFC still needs to build his brand. Despite his win streak, many fans still consider him something of a mystery. They're not sure if they want to love a guy who fights the way he does.
The solution to this problem is to match him up with Forrest Griffin. It puts Machida into the spotlight and also covers the UFC is he loses. Machida beats Griffin, he wins over fans and is a bigger draw when he fights for the title. Griffin wins, you have a marquee rematch against either Evans or Jackson. It's the best of both worlds.