Replace 973p4v or new part?

[Orion Pobursky]

Official torso 973p4v only has a pattern on the front, but Bricklink has the part listed as a two-sided torso (973pb0537).
There is only one minifig which has the torso without the back print, an exclusive minifig in a limited set.

I would like to upload the part with front/back patterns, should I pick a new number or have 973p4v replaced?

If the part exists, it can stay. I'd do this:

- Subfile the front pattern
- If your pattern is of better quality, update the front pattern with yours.
- Update 973p4v to use the new subfile
- Make 973pXX with both the front and back patterns.
- Update the keywords for set numbers and BrickLink numbers as needed.