I'm still of the strong opinion the only fix to the off-sides review is the ELIMINATION of off-sides review. It's the hockey equal of MLB's balls and strikes and it's not broken. If you want to mitigate against insane mistakes, then have a off ice official make the determination as all goals are reviewed anyway.
The BEST use of review past goals IMHO would be high sticking penalties. All high sticks should be reviewed for embellishment. If a player embellishes a non-contact high stick (sells the call) he shall receive a double minor penalty the same way that a high stick that draws blood.