If there is any truth to this (I doubt it) it better be for an established defensive playmaker.
The only way this would seemingly hold validity is if Gilmore's concussion is fine and BB/MP feel he is ready to be that solidly legit CB + JBad has shown enough that they feel confident he is a player they can rely on + Rowe is healthy/ready to return (and BB/MP feel like this guy is ready to be a decent corner). That's A LOT of ifs.
With that said, when BB doesn't intend on trying to re-sign a player like Butler, I wouldn't put it past BB to try and get value. But all the ifs make trading Butler SERIOUSLY risky.
IMHO a playmaker is just what this D needs. If High had stayed healthy we had it. Since he's gone I'd be ecstatic if we could get a new playmaker. Since I don't see that happening it is too risky to trade Butler for 2018 value when 2017 is another viable SB year (especially with no team establishing themselves as a dominant-high mountain that will be tough to beat [a la Bears 85, Rams 2001, Seahawks 2012 etc etc ).