We just got home and monorail purple (I am SURE of this because I saw the stripe) was wrapped. My bet is the other one is monorail pink (I never got on this one last week after I noticed you could see the stripe through the wrap).
Monorail gold was taken out of service one day at the MK last week as we were the last ones to get off and they announced it. Whether it was actually being taken to be wrapped or just serviced, I don't know. I do know that we never saw it again last week before we left Saturday.
It only logical that purple and pink could not actually be "retired" but had to continue to be in service. Let us not forget that this is more than an advertisement. It was a way to pay tribute yet still keep the monorails in full service. Sometimes, there is more than one motive.