Ah, my mistake. Yes, the Phantom tour did in fact end.
As far as multiple touring companies, it really just depends on the producers. Sometimes they are exact duplicates of one another, sometimes one is a bit streamlined to make it easier for the road and sometimes one is slightly smaller than the other...
To use a current example --
Lion King has / had two tours out and I believe that they were exact duplicates... so much so, in fact, that the two tours shared THREE show decks and the tour schedule was booked so that while tour 1 used show deck A and tour 2 used show deck, show deck c would be being installed for one of the tours in another house and they would essentially rotate decks...
Wicked, however has two tours and both have modified designs.
Both tours, for one, do not have a raked deck, as the Broadway production has (and both two share the same orchestration, which is different / smaller than that used on Broadway), but 2nd national tour is designed to travel in fewer trucks and have a shorter load in / out time so that the tour can play shorter engagements than the 1st national.
Some of those changes include:
1.) The large flown bridge that is seen before "One Short Day", when Elphaba sings "I'm Not That Girl" (Glinda and Fiyero walk across it..) and during "Thank Goodness" can be walked on, as stated, in both the Broadway and 1st national tour productions, but for the 2nd national tour, it is merely a flat profile scenic element.
2.) The staircase in the Witch's Castle and the staircase that leads into the Ozdust ballroom are both notably larger than on the 1st national tour.
3.) The Witch's beds don't move as much as they do on the first national tour and the students push the benches for Dr. Dillamond's class onto the stage...
4.) The 2nd national tour has an added well scenic unit for the Witch's castle that conceals the Elphaba reveal in Act Two.
There are numerous others in the design, but those are a few noticeable ones. The most NOTABLE changes between the two - and the first that you will see - is that the Clockwork proscenium arch is a MUCH more simple construction for the 2nd national, relaying more on soft good panels with clockwork drawings as opposed to solid clock works and truss.
Here are the two proscenium arches. Sorry if the images are large. Thank Google --
Wicked's first national tour:
Wicked's second national tour:
A more close up view of the snd national tour proscenium:
ChiChi, by your previous posting, I should be offended by the downsizing of the two tours compared to what is at the Gershwin, but my honest open is that the physical production of the first national is better than what is in New York and of the three, I hands down prefer the set for the 2nd national touring company.