doubleofive said:
Long answer: nooooooooooooooooooooooooooooooooooooooooo.
But seriously, besides the engine colors being made consistently blue, there is no reason to add any "old" equipment to ESB or any other movie. The battle droid in ANHR is more of an in-joke than a prequel reference. "The last remnants of the Old Republic have been swept away," says Tarkin.
Don't you mean, "NOOOOOOOOOOOOOOOOOOOOOOOOOOOO"?