Scenes from a Memory with his influence, possibly.
Metropolis part II was already a demo, so if it wasn't developed for FII, at worst it would have been a long song on the next album. All things being equal (the band wanting to prove themselves and do whatever they want minus enlisting Jordan), the idea to make Metropolis 2 into an album would have probably arose anyway - has the band ever commented if having Jordan on board influenced them on this? I mean, like "wow, we got Jordan, we can do anything, let's go all the way! yeah, let's do a concept album! hey, what about, since we're at it.... expanding Metropolis 2 into a full album?"