If you read this part of the article below again, it's not a 3 year license, they will brew and supply the brands for an interim, the key word here, period of three years. The reason being they will not be selling the existing Labatt USA operations until it's sale to Inbev closes, so obviously the licensee will need supply in the mean time.IMO
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Labatt Brewing, in Canada, will brew and supply the brands to a U.S. licensee for an interim period of three years, the companies said. The existing Labatt USA operations, which are based in Buffalo, N.Y., will be sold to the licensee. Anheuser-Busch said that would happen after its sale to InBev closes. It said a closing date has not yet been announced, "but the brewers expect to complete the transaction as promptly as practical."