Can't really see an extended Troy being much better than the original cut. Will probably just be more of the same.
Oliver Stone has struggled with Alexander since its release. I think its been through about 4 cuts so far. I'm tempted to buy the new Alexander. But as to it being any better: I don't think it can be. Ok so one or two things might be corrected or improved upon but there are major flaws that mar what could and should have been a good film. For a start the casting is poor. Angelina Jolie and Colin Farrell are woefully miss-cast in the two most important roles in the film. The accents are plain silly and it cuts out a lot of the story of Alexander, shooting strait to the defeat of the Persian Empire in the fairly early stages of the film.
I can see what Stone was trying to do in the film its just a shame it turned out so bad.
IMO the story of Alexander could only truely be done justice in a 3 part epic like Lord of the Rings, with plenty of battles.