Jim was talking with his parents earlier this evening when his girlfriend from Paris telephoned to let him know that Crossinglives & Co. had decided to merge with a company in Australia. The two companies had been negotiating for the past month, so it really was not much of a surprise. Of course, this means that Jim will have to catch the next plane back to Paris. He will be meeting with his boss at this time tomorrow.
Why "will be meeting" and not "is meeting" the meeting has been scheduled or planned is to insist to the continuity of the event, the word tomorrow indicates that the event will take place in the future