From MTV (bold added):
'Star Wars' Series To Be Re-Released In 3-D
George Lucas plans to roll out converted films one at a time, beginning with 'Phantom Menace' in 2012.
...Lucas' famed Industrial Light & Magic special-effects shop will oversee the 3-D conversion. Considering the flack some filmmakers have received for converting to 3-D after the fact to ill effect, Lucas promised in a press release that the greatest care will be taken not to tarnish the "Star Wars" legend.