I've read a few suggestions that Colleen Clinkenbeard should voice Fujiko.
I'm not in agreement... so if this show does get a dub I'd prefer for this to not happen.
I like Colleen and she's a great actress but I think she's been overused for far too long.
I think the woman is tapped out and has used every voice she has in her arsenal.
Some fans enjoy hearing particular voices from certain VAs being reused again for certain characters (typecasting), but when it comes to lead roles in my opinion there should be some variety in casting.
Aside from the reasons already mentioned by others (Colleen already voicing past Lupin characters and the possible Case Closed/Lupin TV Special situation if that ever got licensed) I doubt Colleen would sound and act any different than a past role she did in another show.
I think it's nice that recently Colleen is an ADR Director for several shows; good break from being cast too often (yet she still casts herself in supporting roles... HA!)
Maybe she should direct the dub for this show? Give the dub a woman's touch.
No offense to Sonny Strait who directed the Lupin titles Funimation once licensed but it's been years since he's directed anything and he's probably only familiar with the range and acting ability of a few individuals.
If not Colleen then I think Christopher Bevins would also be a great choice as the ADR Director.
I heard he's a big comic book/graphic novel fan and this seems like his type of show.
As for the cast choices for the main 5. I'll assume that Sonny Strait, Chris Sabat and Mike McFarland will reprise their characters.
If they didn't I'd be pretty surprised. That would be awkward... but it's not like those awkward situations haven't happened before for recasts (e.g. Frieza in DBZ Kai)
My suggestions for the new Fujiko (unless we're all surprised and Meredith McCoy returns despite being inactive) are either Jamie Marchi or Lydia Mackay.
My suggestions for the new Zenigata (unless we're all surprised and Phillip Wilburn returns despite not working for FUNimation for years) are Mark Stoddard or Brian Mathis.