i'd say if he broke it, or even got realy close, it would move him up a little. Right now if i had to, i'd tier the greats like this (in Tiers, cause a 1-10 ranking is too hard imo). Goalies excluded
Howe
Gretz
Orr
Lemeiux
Jagr
Bossy
Ovi
Harvey
Lidstrom
Esposito
Crosby
Richard
If Ovi has a couple more good years, I'd probably put him up with Mario, and if he breaks the record (or comes really close), he's gotta be in that top tier. The difference in Goalscoring between Gretz/Marios time and now honestly already makes him the greatest goalscorer of all time, to beat Waynes total is a huge feat we may never see anything close to again