The Fall League is over and how exactly did Bryce do? Well if you were just following AFL coverage you'd feel like he hit 30 homers in 15 games while batting .800 but here's the back of the envelope final line:
.333 / .395 / .590 1 HR, 8 RBIs, 13 Ks in 39 at bats.
The Arizona Fall League can be a hitters league. Despite the impressive line Bryce would only 14th in average and 10th in slugging if he had enough at bats to qualify. But let's not kid ourselves, that's very good. The only concern at all is that strikeout number. That's real high as well. That's going to be the question for Bryce as he starts his trek toward the major leagues. Will the pitching ever catch up to him so that he doesn't make enough contact?
The fact he did so well in the AFL suggests A ball won't be an issue. The fact that he's 12 and super excited about the third installment of the Transformers franchise means that he's got plenty of time to make adjustments and still be a prospect. Like 5 years or so. Barring some late in life David Robinson esque growth spurt putting him at an awkward 6' 7" or something the odds are in his (and the Nats) favor.