The Mk II series has a greater update, the version 2.0 Battlecruiser!

Twice in length and diameter, the 2.0 will serve as a more effective version of the 1.0. An additional length of hull has been added around the fore and aft nozzle, providing a surface to place focused instrumentation and assortments of primary weaponry. The version 2.0 is being used excessively over Greed Ring due to rising corruption fueled threats, serving as a first world to provide experimentation with new military weaponry. This will not be an inhumane usage, thordonian domestic operations always minimalize casualties to the best of their ability. The 2.0 will see most of its usage against uninhabited orbital weapons platforms anyways, anonymously deployed by the remnant wealth of Greed's industrial super corporations. Battlecruisers deployed in populated areas will only be used as support ships, providing reinforcement measures to ground force enlisted militia units; brave and patriotic hellborn bound for hell's progressivism by the lead of an assault weapon's barrel. They'll see to the elimination of the vain revolutionaries with minds of enhanced programming and morals of neutronium.

(Update: The 2.0 has been discontinued and the line has been reclassed as the 1.2, completely replacing the 1.0 as a revision instead of a variant.)