The thing with Sly is, everything changes on a weekly basis. Rumours fly in and out. There have been a ridiculous amount of names attached. My guess is that 2-3 won't end up happening. So best thing to do is to wait till filming commences in the fall. I think filming starts september-october and will be for 3 months.
I think Seagal will appear. I'd guess something like Chuck's cameo. The guys we might not see are Jackie Chan and maybe Nic Cage who always seems to be working.
When he steps in front of the camera, then you'll know for sure. It's been that way in all the films so far. You have to take everything Sly says with a pinch of salt up until it actually happens.
I believe it will though. This one has to outdo the last and if they get all the names mentioned so far, or most, it definitely will.
Not true....Sly always confirms if something he told is happening.
For example:
First he mentioned Mel Gibson as a director....He ASKS people what they think of. After that everybody is going wild and saying " wow Gibson is directing EX3". After that Sly's says "No Mel Gibson" and everybody goed angry and saying "dont' believe what Sly is saying"....I mean what the ****? he didn't say he was directing, he just mentioned the possibiliy. The same is with Seagal and that tweets yesterday about Gina Carano. He never said Seagal is in, he only said he is negotiating with him. Some news sites pick this up and say..."Seagal is in". When we hear tomorrow that Seagal is out people say "Don't believe Sly". People really need to read and think better...