I really don't see Anaheim trading Fowler, as they're already lost/traded some good defensemen in recent years and seem to be going forward with a core of Fowler, Lindholm and Mason.
Shero as has to watch the impact on the expansion draft, as NJ will certainly want to go with protecting 7F and 3D instead of a 4/4 split. There are just too many good forwards that need to be protected - Hall, Nico, Palmieri, Bratt and Zacha are 5 good bets to be protected, leaving only 2 spots for Zajac, Coleman, Wood, Anderson, McLeod and any UFA signings.
Severson and Butcher are already good bets to be 2 of 3 defensemen protected, leaving one spot for Vantanen or someone else acquired via trade or UFA. Maybe NJ brings in another player this offseason that gets protected and either trades Vantanen or waits until after the expansion draft to sign him, which would be a bit risky.