I think Dallas would sooner go after Bishop and just try to sign him or another goalie. Because they have options as well, MAF isn't the only guy they can go after. They can just as easily go after the following to fix their issues and buy out one of their goalies in the off season:
Scott Darling - Off season
Antti Raanta - Off season
Ben Bishop - Now, or off season to get him and sign him first
Jimmy Howard - Now or off season and buy out Niemi
Malcolm Subban - Now, keep Lehtonen as a mentor and buyout Niemi, but they can get him now, call him up and give him some games - They might want to fire Reese as well and hire a new goalie coach.
Dallas has horrendous goaltending at virtually every level of hockey right now in their system, they're likely targeting either a goalie prospect that is on the cusp of being a starter, a back-up that is ready to be a starter (Like Jones & Talbot) or they're going to go after a team that has a young netminder that is pushing the starter (Bishop, Howard - Mrazek is having a rough year though and Coreau is trash).
But Fleury isn't the only game especially while he sits and this is what people don't get. The longer MAF sits, the longer we hold on to him. Fleury needs to play more, to rebound and get his numbers up, so people can see that hey this guy is just having a rough year but the guy is still a starter we can target. Playing 1 game in 3 weeks and having a decent showing is a good start. But as much as I think this team needs to move on from him, it also needs to play him so they can boost his numbers and visibility right now when there are other options that are getting their time.