Star Trek: 10 Secrets About The USS Enterprise-G You Need To Know
10. Word Up G
The arrival of an official Enterprise-G has also meant that some lines of the expanded universe are very firmly non-canon.
Firstly the USS Enterprise-F as seen in Star Trek Online never receives its upgrade from Odyssey Class to Yorktown Class since it retired in 2400 following the catastrophic effects on its systems of the Monfette Gambit. As yet the G remains unseen on that platform.
In STO the Titan namesake has continued with the inclusion of the Titan Class destroyer prototype and there is a suggestion that the name would be taken up by another ship to become the Titan-B.
Star Trek: Fleet Command has also referenced the Constitution III-Class with the Titan-A crossing into the Kelvin Timeline as part of its ongoing story in mobile gaming.
Now defunct fan series Frontiers (not to be confused with the Wizkids game of the same name) placed the Enterprise-G as part of the Excalibur-Class which was designed by Stephen Davis although the prose series would focus more heavily on the sequential Enterprise-H. Sadly most of the information on this series has now been lost but you can take a look at the Excalibur-Class online.