The Good Shepherd a trilogy?

I watched The Good Shepherd starring Matt Damon at the cinema when it first came out. I really enjoyed it although it was painfully slow in places. It now looks as if De Niro (who starred and produced it) has got plans for it to be the start of a trilogy. This from FirstShowing.Net:

Actor and now filmmaker Robert De Niro told press at the Karlovy Vary Film Festival in the Czech Republic that he would like to make two more sequels to his 2006 CIA drama The Good Shepherd. This news definitely came out of left field - I thought the film wrapped itself up neatly and we were done with it two years ago. De Niro didn't reveal any details on when these two films might start to come together, but he did reveal what they would both be about. The first would focus on the time from 1961 to 1989 while the other would follow CIA agent Edward Wilson, played by Matt Damon in the original, up to the present day. Both of these films sound like they are only in early development stages and could end up being scrapped before they see the light of day.