Browsing through Japanese news websites it's clear that everyone is pretty much desperate to remove every single bit of Pierre Taki.
In his hometown they've removed manhole covers with him on them as well as cancelling a local TV show he had. He was also the composer of a local PR song with lyrics written by the late Momoko Sakura. According to the article, they often used it at local events and even played it inside the lifts of the City Hall. They won't be doing that anymore. NHK also already announced that they're going to cut all episodes of their current Olympic-themed taiga drama that have Pierre Taki in them. They will instead only air the ones that don't feature him.
The scandal's fallout is reaching a point where companies, organizations etc might think that keeping any mention of him (or any celebrity who had a scandal, really) around might be seens as a form of support or something.
I strongly believe that we can kiss goodbye to the current release date of Judgment in the west. It's going to be expensive, but right now I do believe that Sega will re-cast Taki, put a new likeness in the game and record all scens that feature his character anew for both the Japanese and the wordwide market. And considering how people, who played the Japanese version of Judgement, said that Taki did a phenomenal job voicing his character, it would definitely be a huge loss, but still better than not getting the game at all (of course in my opinion they should just let the game untouched and not change anything at all). Of course cancelling that's still an option, but I doubt Sega will just do that after already putting so much money into it.