Indiana Jones 5?
A few thoughts. Although most didn't like IJ4, critics by and large actually gave it positive reviews (
78% on Rotten Tomatoes).
Why is that? I think for all the somewhat stupid things (ants eating a person, swinging on vines, and nuking the fridge), by and large the IJ franchise has always been a little about suspending belief. Put aside the religious possibilities of the ark and grail and aliens, but think about other things that simply don't make logical sense (surviving a fall from a plane with a raft, a plane breaking it's wings off and traveling through a tunnel, elaborate ancient blowdarts shooting out, ripping out a living heart with no worries about instant death, etc, etc).
So I think there's a little bit too much emphasis placed on the failings of IJ4 once we were 20 years removed from originals. In 2008 the world was connected and clearer it seemed. We weren't yet in the Twitter age, but we were in the MySpace and Facebook age at least, so we all became critics rather than taking something for what it is. In the early 80s, the thought of cell phones alone wasn't even considered. So I think IJ4 was, in many ways, what IJ 1-3 were, which was fantasy.
So I'm not too worried about IJ5. Maybe it will suck. Maybe it won't. I'm not sure. I'd suspect they try and pass the franchise on to someone else since they've said they don't want to go the James Bond route of new actors in the same role (though you could argue 007 is merely a code name for the "elite").
Whatever it is, I'm just going in hoping to be entertained. I'm not expecting a documentary or a cinematic masterpiece, because the IJ series never was one IMHO, even before IJ4.