I was thinking about the speciality switch in the ninja academy, and how you could learn more than 1 type of jutsu. So I was thinking, what if, after you've gotten a fair amount of dks (Between like 20 and 40) you could learn two specialities at the same time, so you chakra use could look something like this:
Chakra: 16 Points
Basic Ninjutsu:
Bunshin
Kawarimi
Katon ninjutsu:
Ryuuka
Goukakyou
Suiton ninjutsu:
kiragakure no jutsu
kaihoudan
Also thei could open up kekkei genkai, so you could have a few kekkei genkai moves and ninjutsu
Just a thought