DIII transfers are tricky, especially when it comes to offense. Not all of the success translates to DI. For instance:
Last season DIII / First Season DI
Kurt Bruun - at Tufts: 62g, 42a / at Ohio State: 9g, 4a
Dylan Bruno - at RIT: 60g, 31a / at Michigan: 2g
DJ Dixon - at Weslyan 34g, 17a / at Michigan: 1g, 1a
Will Byrne - at Bowdoin: 52g, 63a / at Michigan: 6g
Jack Dowd - at Salisbury 45g, 34a / at Maryland 1g, 4a
Tanyr Krummenacher - at Amherst: 53g, 38a / at Rutgers 9g, 3a
This is not an exhaustive list, and I am sure I am missing someone very obvious. But the players listed above came in with some pretty impressive DIII accolades and didn't really make a dent at the next level. Jack Boyden who went from Tufts to UVA is probably the best player to make the leap. He had 157 points his last year at Tufts and went on to score 37 for the Hoos as a first line middie. Jack Regerny was Tufts leading scorer this year and based on highlights he probably could make the jump. But he's a rising junior so I would guess that is unlikely.