For all the space they take up in the UI, these activities seem to not be available for 99% of the server population.
At least make it so we can sign up remotely (without going to the warboard) so we don’t waste Azoth signing up for war/invasions that we will never be picked for.
Most servers are dominated by a single faction, so members of that faction can fast-travel across the map to sign up for all the Wars/Invasions. While non-dominant faction members need to spend the majority of their Azoth for a chance to get picked.
The only content left is questing and expeditions, which is a funny situation for a game touted as a PVP game.