STO should now be considered cannon, in my opinion. It is as popular among die hard Star Trek fans as any of the series or movies were. The plots and storylines follow directly from cannon sources, even from the JJ Abrams movies (not really cannon to the prime universe except events that took place in the prime universe…
I think it would be an interesting plot twist if the Krenim went to war with the Tholians. Two factions who both possess such advanced temporal technology, being at war with each other, could devastate spacetime. Of course, Starfleet (along with the Federation Time Patrol from the 29th century and the temporal agents from…