It may not have been the good news everybody was hoping for, but it was good news all the same, and the description for the finale indicates that the grand effort to save history revealed by the trailer should be exciting.
Sadly for the fans who rose up to try and win more Timeless (as well as for the writers, who really wanted the show to be saved), the efforts only resulted in the order for the two-hour finale, which delighted the cast, as can be seen in their reaction videos.