You need a new fork...

Going to a composite fork... just a few options and, even if you want to keep your front disc, they're not direct replacements.

All of them use shorter fork legs with less rake so there would be a trade-off / change in how your tandem handles as well as a drop in the front bottom bracket / cornering clearance.

As to whether or not that change would be for the better or worse, that would depend on your post-change impressions / preferences.