Jacked definitely won't be as widely available as it was before, but I think that GNC and UPS labs are both still selling it, and fighting the FDA on this. Jacked and OEP are USP's flagship products, and killing them off will be like killing off the entire company so I doubt that they'll give up without a good fight.
As a pwo, Jacked was badass when it first came out, and set a new standard for pre-workouts. But since then, plenty of other companies have come out with better, more powerful ones. IMO the good old ECA stack (with ephedrine hcl) is still the most powerful pwo; that stuff is straight up adrenaline into you system and makes you strong like nothing else. I don't use it that much anymore though cos it gives me a short temper.