Having witnessed a discussion between the Commandant, Lady Sigrid, and the Diamond Throne representatives, reanalysis of early estimations is required. No knowledge of basic terms i.e. "tariff" was shown by Commandant. Sinking of vessels was implied in his understanding of said term. Suggestion of power struggle may simply have been combination of drunkenness and gross ignorance on part of the Commandant. Further investigation is required for definitive conclusions to be reached.
The Lord of the Empire has remained absent for the majority of the summit. If rumours of his failing health prove founded, our timeline may have to be moved up. The death of the man currently attuned to the Heart would of course leave no choice but to move immediately.