Would be nice to have a war of fleets announcement (much like the join online battle tab when out of combat) during online battle/harbor assault/operations etc. with the option to be taken out of current action to join the war of fleets.
Also ship confirmation - last minute ship change as most people will use different ships for online and wof.
More extremely, there shouldn't even be an option, whenever war of fleets starts every selected player should move there abandoning any other action.