If you happened to think that Governor Blagojevich’s situation might become more untenable once he’s formally indicted, it looks like you may have to wait a few months longer:

U.S. Attorney Patrick Fitzgerald has filed a motion seeking a 90-day extension to return of an indictment against Illinois Gov. Rod Blagojevich.

Federal prosecutors normally have 30 days to file an indictment against a defendant. That deadline would have been Jan. 7, and the extension would give prosecutors until April 7 instead…

In the motion filed Wednesday, prosecutors ask for more time because “multiple witnesses” have come forward in recent weeks and investigators have to review “thousands of intercepted phone calls.”

A U.S. Attorney spokesman says a federal judge is scheduled to review the motion at a Monday hearing.

Assuming an extension is granted, there’d be no requirement that Fitzgerald wait until April to get an indictment; it could happen sooner. At the same time, it’s hard to imagine that he would seek a 90-day extension unless he were planning to wait a few more weeks, anyway.

For Democrats hoping that the pressure keeps mounting on Blago to step aside, this can’t be welcome news. For the rest of us… pass the popcorn.