It's pretty common for players to take a large step in their third seasons in terms of production, so you'd expect Keller to step it up, however, his rookie season was already pretty productive at 65 points, so if that is actually the step up we're looking for it's close to a point per game and thus is a much harder jump than almost any one else on the roster simply finding a way to add 10 to 15 points. Also, if you look at this
small sample, his expected goals last season should have been much higher. I think he just got unlucky, and it's kind of reassuring that he has as similar of a shooting profile as Jaden Schwartz there who was snake-bitten all season and then turned it on in the playoffs.
I think Schmaltz has a pretty good record based off his second season and the short bit he was here, but the injury derailed that. Similar to Keller, he should be expected to maintain that level of production, but it's obviously going to be harder for him to jump up even higher as he's already one of the higher point producers on the team. I think good growth could also be measured for both Keller and Schmaltz if they were to achieve their previous levels of point production, but really had cleaned up their defensive coverage and maintained the offense while limiting turnovers.
So on the note of third seasons, both Chychrun and Dvorak came back from injuries during the season and missed out on training camps. Additionally, it's been noted that Chychrun was still dealing with the fallout of his injury, soreness or whatever limiting him to some degree. Hence, it's a good bet that these two should be making the biggest jump as it's the right time developmentally and both should be as close to fully healthy as ever.