I'd normally be all for a follow-up, but in this case I agree with you. I have zero confidence a "youngified" Picardo could be pulled off in a way that would not be distracting or downright poor. Look at what they did to poor Data in PIC.Meh, I'm probably the only person who doesn't care if Living Witness is ever followed up on or not.
On top of that, my reaction to their Sisko ep was of the negative variety. So I wouldn't be confident on the writing side as well as the VFX side.

