Huge Karlsson fan. And a Sens fan. I think it is way more likely for a D to get 70,75, ppg or even 85 points rather then score 30 goals. Doesn't mean 30 goals means a D is better then 85 points. But more rare? Yup.
I do not think it is likely to happen over the next 5 seasons. But I give Burns the best chance. I think Karlsson is capable. He takes a ton of shots and if he had a top PP and good luck 30 goals is possible. But still unlikely. I think EK might top out at 25/26/27 goals in his best years.
I think Weber and OEL could also potentially score 30 with great luck and an elite PP. Unlikely. Like 1 in 10 chance even in a great season. But at least possible.