Geez, who left him unprotected in Rule 5?
So I just looked at a few DitRs. They seems to get 2.5 seasons of fast development after the DitR, and one more season of modest development. So Laxton will probably get another season of development a bit less accelerated than last, and then pick up a couple more points. My best guess is something like 75/82/68/85/17 on offense, 62/85/87 on defense. Which projects to .290/.320/.470 or thereabouts.
Which, given the DUR = 70, is a helluva DitR.