I don't think it'll be that simple.
The last countdown we had didn't have the symbols keep changing till the release of the trailer, the symbols represented certain numbers.
Look at our world for a second... "The static transmission changed"... Say what? Imagine our fathers doing the same thing for, say, Raiders of the Lost Ark. "Hey psst, pal... Did you get it? Erm, what? Transmission from god, of course! Apparently it has something to do with that guy Steven Spielberg, it's awesome man!" Sometimes I just want them to release the damn thing but it wouldn't be this interesting.