They have a break in the movie filming already planned, so the schedule doesn't get screwed up if there's a strike.
I thought they filmed rather quickly; it was the CGI that took so long. And this time around, the "programs" to do it have been made, so it shouldn't take as long. I do recall that TF1 was not completed until like 2-3 wks before its release. And rumor @ BotCon was that if needed, i.e., the strike looks to last a while, they would swap GI Joe & TF2's slots, to buy an extra 5 wks of post-prod time.
Smart move on the filmmakers' part. Just as long as the film is ready for release by next June I'll be happy.
I think you guys might be misreading: The hiatus is built in to prevent the strike from being costly to the studio by not having the actors go on strike while everyone is out on location, forcing them to pay extra travel expenses and the additional costs of rescheduling locations and things like that. But if they go on strike, the actors would be unable to return to filming until it is over, which could still delay the film by a large amount of time. Hopefully it's a moot issue, and there will be no strike.
I would be surprise if the studios are dumb enough to screw this one as they did with the long period of the writers strike !! They need this to finish all productions intended for summer '09 !! In the end the will think in their financial capitol and come with deal pretty soon !!