Sure, I think putting current/upcoming projects on your resume makes sense, especially when applying for down the line jobs where you need to fill in the gaps between when you are applying and when you are available.
The only reason not to is if you are not contracted yet for that work, in which case you may be blocking yourself from a better job that comes along (oh, so and so is not available for the this job because they are doing this summer fringe show . . . let's move on to the next person.) But, if you are contracted and the next gig is good enough to turn down other work - then go ahead and list it.