Indy IV Plot Details?

I know I've been sort of on a kick lately with all the Indy IV stuff, but, well, Raiders of the Lost Ark is my all-time favorite film. And with Indy's production kicking off late last week, the flurry of news is to be expected.

That said, a mysterious individual with some alleged Indy plot details popped up on Ain'tItCool's latest Indy IV talkback yesterday and today. He has the handle "JettL93" and seemed un-arrogantly confident in "clarifying" some of the rumors flying around the upcoming Indy sequel. I'm not saying this is George Lucas' son, Jett, who was born in 1993, but it's certainly an interesting coincidence.

Stranger things have happened on AICN talkbacks before. Last November Syl Stallone himself visited the site to read reactions to Rocky Balboa news and later participated in numerous Q&A rounds with talkbackers.

And several months ago a talkbacker going by the name "Walter B" outted himself as Bruce Willis on Die Hard 4.0 talkbacks and engaged in Q&A's through the talkback for several days.


*POSSIBLE SPOILERS AHEAD*

Among "Jett's" Indy IV comments are...

Dinosaurs rumored to be in the film: "there is ... a scene involving a dino dig and indy looking for another artifact when he runs into some baddies, and theres a chase through the dig site...they are not live dinos.."

Stan Winston is creating "creatures" for this film: "Remember indy 4 is going to deal with the supernatural aspects of the 50's, but it won't just be out there, it will use science and history to explian the pasranormal aspetcs (sic) of the film."

Shia is Indy and Marion's son: "Shia is not (Indy's) real kid...he's marian ravenwoods kid, but indy is sort of a father figure to him"

So, is this info legit? Is this just some talkbacker with an unusually inordinate amount of reserved non-know-it-all attitude that wants to look like they know what they're talking about? Who can say. Either way, there's a heck of a lot of fun in all the speculation.