This seems to be a grey area. Per BJCP there is only one american wheat style: 6D, American wheat or rye beer. This is a pretty broad generalization IMO.
For a beer to be a WPA (wheat pale ale) in my book, I'm expecting some significant hop notes. Tallgrass Halcyon wheat is the only beer I've had that fits the bill but the more I hear about TF Gumballhead and Lagunitas Little sumpfin sumpfun, the more I think they are in line with my requirements, and I can't wait to try either one.
OTOH, I hear Goose Island 312, Boulevard UF Wheat, and Widmer Hefe all referenced as WPAs in some circles, but not mine. While they are good beers in their own respects, I don't find the word "pale" coming out of my mouth.
But all of the hub-bub aside, I don't know what the 422 is like, so I can't offer any clone information.