A Pierce trade would have to be a part of something big. For example:
1) Somehow get Pierce to a playoff team that thinks it contend for a couple of years with him but also has valuable young assets, high draft pick, etc. Couldn't find a match.
2) Get in the middle of a Dwight Howard deal, for example:
Lopez, Pierce, Marshon Brooks, future #1 to Orlando
Howard, Turkoglu to New Jersey
Okur, Farmar, NJ #1 pick 2012 to Boston
This of course assumes that even with this trade, NJ ends up as a top-5 pick in this draft.
Seems highly unlikely to say the least. We don't be dropping Pierce just to save money and rebuild. Won't and shouldn't happen.