Levels: There is no theoretical limit to how high a character may progress, i.e. 20th level Lord, 20th level Wizard, etc. Distinct names have only been included for the base levels, but this does not influence progression...
Levels Above those Listed: Progressions of Dice for Accumulative Hits, Fighting Capability, and Spells & Levels may not be evident. An 11th level Lord would get 10 +3 dice and fight as he did at the 10th level; but at 12th level, he could get 11 + 1 dice and fight at Superhero + 2...
Spell progression for Magic-Users is: 17th level Wizard — 6, 6, 6, 5, 5, 5; 18th level Wizard — sixes across the board; and so on. Spell progression for Clerics is: 11th level Patriarch - 4, 4, 4, 3, 3; 12th level Patriarch — fours across the board; 13th level Patriarch — 5, 5, 5, 4, 4; and so on.