I'm afraid I'm not sure what you mean by "going back to 11." Do you mean that instead of mapping to 11 their digital freq will be 11 also? Why would that even matter?
Scott, I do see your point about not needing broadcast numbers in the logo. If I remember correctly, in Lubbock, KCBD 11 is seen on Channel 9 on most cable systems, KAMC 28 is on 8, and KLBK 13 is on 7, so I guess calls make more sense. But I sure don't understand why they dropped the 4 from the WBZ logo, other than to emphasize the return of the "W B Z" branding. The trouble is, from the old days of the 70s and 80s, the "TV4" was as much of the branding as "WBZ". KDKA didn't stop using "2" and WCCO in Minneapolis is only now phasing out the "4" in their logo.