100% - If they're in "in talks" and then decide not is one thing. My query really is is it that easy to go and decide we want Angie, Kate, Rhona and Scarlett in P2 and just throw it up there? Or Danny, in this case.
If so, I'm flabbergasted, but I don't know the answer (hence the query *lol*).
I hear what you're saying on debunks - Shatner just said today that he's not part of Trek 3 as was "rumored" but looking on IMDB, he's not listed as cast (no one is for that matter). But as I say, that's not really my point. Tmjur intimates that we should surely be able to spot fake cast updates - I'm wondering how easy that is.
Now - if Danny's potential involvement has come from an official source, that puts a different spin on things.
But if its made up bollocks because Russ and HuDaFuk went on there pissed up and put Danny on the cast list "for a laugh" then colour me amazed - I really thought there'd be some sort of check to stop that sort of thing happening.