The jet went missing on March 8 flying from Kuala Lumpur to Beijing and despite a massive aerial and sea search no sign of the aircraft which was carrying 239 people has been found.
An underwater probe of the Indian Ocean seabed where acoustic signals, thought at the time to have come from the jet's black box recorders, were heard also proved fruitless.
Australia's Joint Agency Coordination Centre said analysis of satellite and other data to determine the search area for the next underwater phase would be concluded soon.
"The search area will be confirmed before the end of June, after completion of extensive collaborative analysis by a range of specialists," it said in a statement.
"It is already clear from the provisional results of that analysis that the search zone will move, but still be on the seventh arc (where the aircraft last communicated with satellite)."
AFP