Will they use the nickname 'WALLY' for Walter?

Even in the original books, where he was a 'Nam vet in his mid-50s, Ike was a black man, Isabel was a stuttering New York Times obituary reporter, and Leo's back story belonged to someone who had successfully murdered the people who got his family killed via tainted meat, he preferred to be called "Walter." Methinks Booth was calling him "Wally" as a way to get back at him over the AWOL arrest.