Impossible to know. But if key witnesses don’t give evidence you can try to use it as hearsay evidence but its impact will not be the same. The other way is worse though because a key witness who doesn’t now turn up here risks the PL asking the Panel to make an adverse inference. I assume those required will be there this time.I know some time has passed since you posted this, but presumably (obviously?), all these witnesses will testify in the upcoming case?