Complex sentence: On March 7,2011, it was reported that Boeing intends to launch the 737 replacement at the 2011 Paris Air Show, and is expected to name the new airliner the "Boeing 797" that will seat 180-250 passengers.
Split into simpler sentences: On March 7,2011, it was reported that Boeing intends to launch the 737 replacement at the 2011 Paris Air Show. It is expected to name the new airliner the Boeing 797 and will seat 180-250 passengers.