LA isn't making much of anything(SW, Indiana Jones, or any other IP) these days. EA has taken over main publishing duties of SW:TOR, and Microsoft will publish the SW Kinect game. So really the only game on LA's schedule is Lego Star Wars 3 and that will be out in March. So scheduling isn't the problem, it will be if LA thinks there will be a big enough base for an Indiana Jones current-gen, non-Lego game. They didn't seem to think so when they cancelled the one a couple of years back.
And LA has generally never gone after big name actors for their games. I remember Billy Dee Williams in Jedi Outcast, and I'm sure that Christopher Lee has done something sometime(he's in everything), outside of that no big voice actors( that I can remember).
So, when will LucasArts finally make a fully dedicated top tier Indiana Jones game again on the caliber of Fate of Atlantis? The answer?
Never. They'd rather make thousands of Star Wars games before even considering making another Indiana Jones title which isn't a Lego one.
Yes, I'd actually pay for a current generation very very VERY top quality Indiana Jones game which features Harrison Fords likeness and especially himself voice acting Indiana Jones. Yes, why not have it like 007 James Bond: Everything or Nothing or even GHOSTBUSTERS: The Video Game where you actually pay for top tier A list actors to voice characters?
Fan of Indiana Jones. Don't care about Star Wars anymore.