There were about 7 or 8 nearly complete A380s sitting around waiting for testing and completion of little bits, before being flown to hamburg for interior fitting. thai, korean, emirates (3 or 4), the private arab one etc. were all there. you won't be able to see the main assembly as it's off-limits, only the completion hangars, but there are still people clamouring all over them fitting stuff, just not the main fuselage and wings together.
as i said before, if you're going to go all that way do the other 2 tours as well. the heritage tour shows you round the old aircraft they have there and the panoramic tour drives you around the whole facility, where you see tons of aircraft outside nigh-on complete and some ready for testing.
And of course you get to see F-WTSB and go inside F-BVFC - very interesting to see how Air France kept their Concordes looking old school inside.