It might be fun to have strategus battles (not sieges) work like the crpg battles, having the two armies clash in several rounds instead of the respawning death match type we got atm.
although fighting over strategic key locations will not be focused that much anymore, it might help get an organized real battle feeling to it.
just remember how the multi clan tournaments were and how epic it would be, if strategus battles could become like this.
short version with electronic music:
long version: