I broke down numbers in the pursuit of "amusing myself by guessing Travis's next character using statistics" in another post, except I filtered out subclasses that hadn't been playtested on 5.5e, despite PCs at the table using those subclasses, so I am making an amended post to include those subclasses so it's a bigger pool of possibilities.
For race I stuck to the implied limitations of Aramán: the seven races of the shapers + half-orcs, fae and demons [tiefling] and then narrowed it down from there.
Classes and races were removed from consideration for two reasons: Travis has played it previously (outside of one-shots) and/or there are already two or more PCs using it in Campaign 4. All subclasses of existing PCs (including Teor) were excluded.
Grog, Fjord, Bertrand, Chetney & Cerrit were the characters used for elimination, removing barbarian, warlock, fighter, blood hunter & rogue, as well as goliath, half-orc, human, gnome. Cerrit doesn't count towards eliminating beastfolk and he's signaled a willingness to repeat paladin so I kept it in despite Fjord/Teor. Sorcerer, wizard and orc were excluded because of other C4 PCs.
This leaves us with 6 races, 7 classes and 47 subclasses 282 284 possible combinations, or a .35% chance of correctly nailing the race/class/subclass of the character. (If you JUST want race and class you have a 2.326% chance of getting it right with the scope I'm using.)
Tables under the cut. (Updated 7/14 with some newer ranger subclasses)
