This is the first time I've ever heard the term "sequel trilogy". Is it actually used on other sites like TFN? If so, wow. That makes it seem that the prequels are really the basis and the original three films came along later and build on the story that the prequels started. Amazing, the assimilation is complete.
But back on topic, assuming by sequel trilogy he means the original trilogy, then a petition requesting a CG yoda to replace the puppet yoda is one I would never sign.