Putting aside what will be revealed on Friday and not addressing it, I would think a potential Romeo or Juliets can occur in a number of ways:
1) Crate find, which is probably the Vegas odds-on favourite if everyone is placing bets. It wouldn't be the first time Oakley found a crate of X-metals in inventory like what happened with the Mars many years back: https://www.freshnessmag.com/2010/08/19/oakley-x-metal-mars-sunglasses/
2) 3D printing. Lux has had 3D metal printing capabilities for many years through Digital Metal's printers, which may include titanium. I know Oakley has been using HP printers for the last few years, but I'm not sure those are titanium 3D printers (probably not). Either way, this is a route that can be leveraged if they want.
3) Titanium factories. Lux has had titanium manufacturing capabilities for many years and even recently bought the complete share of the Japanese company they were minority partners in producing Ti eyewear for inhouse brands like Oliver People. Perhaps that capability can be leveraged.
4) Outsourcing. I suppose the manufacturing can be outsourced.