How large is this new pond? Are any other fish already added to the pond?
What size tank are the Goldfish in now, and about how large are these fish? What kind of goldfish are we talking about? Commons (comets) can survive and thrive in ponds whereas fancy goldfish really shouldn't be placed in ponds where the weather turns nasty (the northern section of the United States). Fancys prefer warmer waters and a constant temperature is best for them.
Answers to these questions will greatly help determin whats best for the fish.