short answer, no.
it would make no sense to take an engine and replace its very core with a different engine.
for an example replacing graphics engine of Panda3D with ogre instead of opengl or directx?
ogre uses opengl or directx itself.
why would you want do do that? you need anything ogre provides you with that panda does not?
[edit: and this thread belongs into general discussion, unless you actually working on it allready]