I thought about stats too, yet stats are there to prevent all-round characters, and there are simpler ways to make them and allow all kinds of skills etc at the same time. It's a matter of what they want to balance things around and make something approximately functional out of variables and options that drive everything to undecisional gameplay, 'cause for players to guess what the enemy is up to they need indirect and reliable infos.
Reasons i posted somewhere
That would be the easiest way to deal with it.
If what I think the game is gonna be is true, you'll probably have "one character" (ala Fallout), not really any classes, but at the begining, you'll have a bunch of point to put in your REF, CON, COOL, etc..., then your 40 points for your skills (something like the pnp), wich will influence your "role", and your main stats will influence your "character". That's the most reasonable way to do a great game without spending time adapting the game for almost 10 different roles.
I'd love to have 10 different game for every role you'd choose, but technicaly it's almost impossible (well it is, but i doubt CDPR would have the time and the recourse to make it really "deep" if it was the case, i'd prefer "One guy" game with a long and deep game/story, than a fast-scratched "every-role" game who'll end up less cool than the pnp, what is appliable on the pnp isn't on video game)
Everyone start at the same point and you'll decide wich way you choose to play your character, I can be wrong, but it seems to be the easiest way for them to do it, and you'll still have the versatility of the various role depending on how you turn your character skill-wise.
As stated on another topic, it's going to be an adaptation "CDPR's style" so I think we'll have a mix of the pnp mechanics, and something "new".
Plus, if there is multiplayer, the characters have to be well-balanced, otherwise it's going to be super-broken.
For the number of gun you can take, some cybernetic-augmentation of your body constitution will probably be aviable (this and exo-squeletons) to help you wearing a lot more stuff.