Establishing some kind of ranking system definitely sounds like a good idea! And I quite like the rank names, even having the third one as "Knight" still would be a nice callback to the old ranks I guess (though we could have something like "Neophyte" instead if we wanted it to be less Jedi-ish (though it might make sense to have Neophyte as the first rank in that case and bump the other two up one in their place, so something like:

Rank 1: Neophyte 
Rank 2: Disciple 
Rank 3: Apprentice
Rank 4: Champion
Rank 5: Master? 

That'd be a nice surprise for our duo, for sure! Will work on a response now, if I don't have it up tonight it'll be finished in the morning XD dad caught the flu and it's spread to eeeveerryybody in the house, feeling a bit  o.o