As an option, no. It's too big change, it would basically be a different product. Also, being able to base the design on already working and tested GTA04 was a major point when we evaluated feasibility of the project at its start.

As an upgrade option later - possibly. After all, OpenPandora's Pyra is like our "sister project", sharing some of the developers. Making an OMAP5 upgrade board based on experience and knowledge acquired while working on Pyra shouldn't be that hard.