There's also this
new analytics-driven piece on ESPN, which outlines a lot of evidence that a huge bump in Kyle's 3 point percentage may be in the cards. The TL;DR version: in approximately the past 20 years, players who have shot below 30% from 3 on more than 100 attempts in their freshman or sophomore year upped their 3 point shooting by around 7 percent the following season.
John Gasaway makes an under-the-radar argument for why this is likely the case: players who are shooting that many 3s likely have the "green light" from their coaches, meaning they have the fundamentals of a good shot that isn't necessarily coming out in game action. Add in a little offseason improvement and you're more likely to regress to the mean.
Kyle attempted 124 threes last year, and my bet is that he'll attempt more this year. If we give him an even 150 attempts, or approximately 5 per game in a 30 game season, a 7% increase in his shooting would yield an expectation of .35 more made 3s per game, which would up his scoring average by a point per game. That's quite non-trivial, and will likely be just one of multiple avenues he'll improve given what we know about the typical freshman to sophomore leap.