Escalation
The Escalation Campaign is a series of specific encounters between the four factions. 
Each Season has a four-way battle for Act 1.  Then a series of 1,000 pt battles for Act 2, and a battle between the two highest ranked players for Act 3.
After Act I, you deploy three warcasters to each of the three scenarios you will play in Act II..
The two players with the most victory points face off in Act III.  Each brings 1,000 points plus their total Survival Bonus.
The schedule I worked up requires one game per week.  If we have multiple players in a faction, you can pick which battle to Ścountą against each faction.  Since the battles are 1,000 pts, some of us might have to play more than once a week to accommodate the crowded factions.  The extra battles can just be scheduled as needed.