The wait could be almost over - Tata Motors seems set to announce the completion of its purchase of Jaguar and Land Rover as early as next week. Indeed, sources close to the deal suggest the news is likely to break on either next Wednesday or Thursday.The announcement is being held back until after the launch of the new Fiesta at the Geneva Show press day next Tuesday. But according to a report in Automotive News Europe, British union leaders have now agreed to guarantees about the company's future made by Tata, and the way is clear for a formal transfer of ownership as soon as possible. A Ford spokesman refused to either confirm or deny that a definitive date for the announcement had been made: "our official position is that an agreement will be reached soon. We're not saying more than that at this point."