Oct 8 (Reuters) - Air Canada: * AIR CANADA - AIRBUS A321XLR EXPECTED TO BE IN FULL COMMERCIAL SERVICE BY NEXT SUMMER * AIR CANADA: A321XLR WILL BE USED TO REPLACE SOME OLDER AIRCRAFT, BUT STRATEGY IS TO USE IT FOR GROWTH, ESPECIALLY INTERNATIONAL Further company coverage: (The article has been published through a syndicated feed. Except for the headline, the content has been published verbatim. Liability lies with original publisher.)