Honestly, as long as it has the same crew as the first 4, then I'll be delighted. I just don't understand what people's problem is with Crystal Skull. Thankfully this thread has thrown up some common sense arguments.
Indiana Jones always was a throwback to the 30s-set adventures serials that Spielberg and Lucas watched as children, as well as various adventure stories, comics and such like. It makes sense that, when the franchise moves into the 50s, it takes with it the 50s sci-fi feel, so you see, aliens are a perfectly natural jump for the series to make. The plot was fine, and pretty much identical in structure to the other 3 films.
Much of the problem lies in peoples' cynicism, and the rose-tinted glasses which they view the original trilogy through. It means many criticisms of Crystal Skull just dont stand up. You didn't like the fridge scene? Fine, but that means you can't like the scene in Doom where they jump out of a plane and survive by using a dinghy as a soft landing. Didn't like the monkeys and gophers? Well, again, how can you like Doom for the elephant scenes? And don't even get me started on the light-sensitive spike trap in Raiders.
Fact is, Indiana Jones is a silly caper, it always has been, and Crystal Skull was no different. If you didn't like it, fine, but what brings my piss to a boil is when people criticise it for doing exactly the same things that the old films did in a more modern way.
That's called 'hypocrisy', people.
