Not really. I referenced all the young guys traded who are currently starters (or were). There's almost no data to show that an established #1 goalie will bring back a better return. You'd think it would be obvious... but it's not something we've seen in this league. Miller is probably the only recent example.
Buffalo Sabres traded Ryan Miller and Steve Ott to the St. Louis Blues for Jaroslav Halak, Chris Stewart, William Carrier, a first-round draft pick in 2015 and a conditional third-round draft pick in 2016. Halak was traded to WSH for a 3rd, Kesla and Neuvirth (both pending FAs). Neuvirth was moved for Johnston and a conditional 3rd (we'll assume the conditions were met). Stewart was moved for a 2017 2nd.
So Miller - was essentially traded for a 1st, 2nd, 2x3rd, prospect, and a backup goalie. Which isn't bad. However there were a lot of moving pieces there and half that return (the second 3rd and the 2nd) was based off of Buffalo selling assets that were moved for cap reasons as part of the initial trade.
If Pittsburgh was moving MAF (say with 1.5 years left on his contract - aka we trade him 2 yrs from now), I'd be surprised if we could get more then a couple of 2nds and a decent prospect. Maybe we get a 1st and a prospect. We've seen time and time again that you do not need an All Star goalie to carry a team to success. And GMs know this. A good team and a decent goalie will go a long ways to having regular season success (something most teams are more worried about). And with teams like CHI, DET and DAL all potentially having goalies available, I do not see MAF getting some king's ransom.