Not that I can think of.
The way forward for guys like Kira is less to add 30lbs or muscle or whatever, and more to add some weight but focus more on core-strength training. That's what Curry did just before GS took off as a dynasty, and it showed massively. He got larger, just naturally as he aged which happens to everyone, but you can see where the added core strength and balance started paying off: in 2011/12 he shot 56% at the rim. In 2012/13, 58%. 2013/14, 62%.
Then he went 68%, 70%, 65%, 67%, 65%, 70% over the next several years up until last season. Just the leap in his ability to finish went soaring up, and you can see that reflected in his Free Throw Rate as well, which has never actually been that high for a superstar but which went from about 19% his first four years up to 26% since.
If Kira can do that, where he just adds that core strength and improves his balance, along with the natural weight that aging into an adult body brings, I don't see any need for him to try and hit 200lbs or something.