Indiana Jones 5 could start filming next year according to the a news service in New Zealand, Stuff. As usual these sources have no names but this is the deal
"George (Lucas) and Steven (Spielberg) have been working on a script and it's almost there," Stuff was apparently told, which really just confirms what Team Indy have been saying for a while now, and still doesn’t commit them to actually making the thing. "Harrison is on stand-by for filming next year. This looks like being an emotional and exciting conclusion to the franchise, with Indy facing his biggest challenge yet." “This will be a blockbuster made in the old fashioned way rather than the CGI efforts of the last movie."
So no army of ants then, wonderful!!!
UPDATE – Frank Marshall has dismissed the above rumours on Twitter saying “The rumor about INDY 5 is completely false. Nothing has changed, we are not shooting next year and still in the research phase...”