My dealer gave me the option to wait until fall/winter. I decided that I wanted the problem taken care of as soon as possible.
The bad glue that caused the delamination in the first place opens up the chance of water damage. That was becoming evident inside the tt. It was hard to tell by looking but if you run the palm of your hand over the wall inside the tt you could feel where the wall had swelled. This is due to the styrofoam insulation getting wet. My dealer actually pointed this out to me. It can also produce small, hard bumps sometimes looking like a rash. I had a few of these as well. You might want to keep an eye out for those problems.
I felt that everytime it rained the damage would get worse. Also the longer I waited presented the possibility of mold growing inside the wall.
I just know the problem wasn't getting any better and would only get worse, possibly cause other problems. I didn't want them to have the opportunity to say that at least some of the damage was due to my delaying the repairs and then charging me for that part.
Good luck with yours and I hope that FR repairs both our tt's to our satisfaction.