That is of course *assuming* there'd be sensitive material in it, and it'd be too much to simply cut out (while salvaging the rest of the trailer).
It's definitely too far gone to straight up remove him at this stage if he's in. I doubt Sakurai would even consider that. Something like "The following may contain sensitive media due to recent events" or just video editing is much easier than removing him if he's there. If he is, keep in mind that most of the voicework is already done if not all of it, plus a stage that likely took months and months to develop, plus a score of music, plus ATs and other things.
Wouldn't be the first time Japan censored stuff in Japanese versions of trailers or what have you for sensitive media, but this is all assuming it even calls for that. For all we know, he could throw a rock or use Move in the actual CG.
Not to mention, stuff like Famitsu will already be in print, and if it contains Direct info and he's there, well...
(That, plus media outlets that had an embargo about Direct information)