+1. Be patient, there is no way of knowing now and changing plans now to try and avoid MF routes will only lead people to abandon their preferred plan that may go ahead in favour of plan Bs that might not.

Some EF will operate MF short haul routes so that non striking MF can focus on their long haul routes, some WWF will operate some longer routes whilst a few frequencies might be cancelled on WWF routes that can take the cut with passengers reaccommodated (JFK, BOS, MIA, ORD, DFW or LAX for instance) and if need be BA can even charter some flights and crews to cover any blind spot.

Again, I hope for MF that they will manage to cause maximal disruption to us as very sadly that is their only hope to be heard at all.