Its like blitz war but shorter.
3v3 with multiple cues, that way multiple wars can be done by the same faction. This helps many factions who have members who are busy and cant raise the numbers to start the war search.
A 3v3 would be very helpful.
Also, in other wars as well, allow the generals to replace the inactive with the active people in reserves. It doesnt have to be during, but it makes it hard to do war with just 2-4 active people.