If 5231 follows the course of 5131 both 5231R and P are still outstanding. So far each 5131 in all its 4 metals and the 5231J and G have each had a specific map. I don't think the next one should be more than 1 or 2 years away if they do release a 5231R and/or 5231P. Then again who knows what they are thinking these days.
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