Zero chance Bam shows up, also this is gonna suck balls.
i dont really care if it sucks, but it's a really really bad idea regardless because most of them act like war vets basically, and large contributor to drugs was for pain. its really stupid to put yourself up to further injury when they're all already getting old, and how tempting it would be to get something just to take the edge off stunts. it'd only be within reason if it was much more fear factor, "would you drink this gross shit or lose", bad grampa stuff, pranks, etc, but of course that'd be just half of a jackass stunt show without the being tossed off cliff shit. bam being there would be the least of the problems besides him actually planned for being there but late/not at all, they all know where to get drugs if they want them, i'm sure.
they've all come to terms with being more sober (steveos entire identity is basically now "i was a drug freak now im not give me money"), it's risky to the point of stupid to risk injuries possibly far more painful than they're already dealing with chronically. honestly with all the shit thats come out, if they wanted a project together again they should have just done something separate from jackass, again like bad grampa or some other type of screwing with people/areas. the dream would be with a sober/sober *for now* bam as like a jackass crew send off, which shouldn't really be for the money, just for fans and themselves.
but if they do fully go through with it, they're too fucking old, and if they just stick to "nah nah i still got it" while being told theyre fucking old, high risk of *bad* injuries. if they stick to lower risk stuff while just doing a normal jackass plan, it'd suck worse than doing something different. on top of most everything they could do being done prior, or rather, there's not much higher risk/crazy shit they could do, WHILE ALSO being old af and having weaker bones and healing, and being off drugs. steve o will probably find out real damn fast feeling shit with adrenaline on top makes crazy shit not so fun. all in all fucking stupid, should have just done a fun prank/anniversary film with unreleased content of them all etc, then at credits or post do a "ty to all you guys for coming/viewing and supporting us, we love you, wed've never been able to have so much fun without your support all these years, wish we could all have been here, im johnny knoxville, and this was jackass" *snot, tears, hugs, very emotional, you clap*