Google "Honeycrip Yellows". That's my guess.

Thanks, olpea, you are correct. Here's a link showing the identical strange mottling that my Honeycrisp is exhibiting. So glad this is nothing to worry about. I'm eyeballing a couple of my pears for Fireblight right now. I think I may prune just to be safe. Sometimes here in our area, very mild infections will manifest in what looks like burnt edges on the leaves. So, two of my pears are showing this - time for the pruners.

Patty S.

Here is a link that might be useful: MSU Extension: Regional Fruit Report

My honeycrisp often gets strange coloration on the leaves, too, but it never seems to hurt the tree any.
Northwoodswis