Hi Donny,
I'm not a country style user, just what some of the owners used to complain about, not enough country on the PA800.
I've started compiling my list though, the new styles are
Easy Country
Country Blues
Slow Country
West Coast
Country Hit
Finger Pickin

Country 8 Beat is not 100% identical to Pa800
& they've dropped Country Shuffle 2

There's now 21 compared to the original 16.

The ones they've added are different ie they haven't just added a 2nd waltz or a 3rd ballad.

I did a bit of a comparison thru the same amp between my pa3x & pa800, overall the styles just sounded better balanced or something.

There's also 6 new unplugged styles.

Unplugged Heaven, (titles a bit of a give away.)
Acoustic Rock
Sally Groove (wonder if that's the one Don was referring to for mustang?)
Unplugged Reggae
Unplugged Ballad4
Easy Strumming

Quite a few new rock styles & they've dropped some.
New Pop, plus they've dropped a few
Ballroom pretty much the same ( 12/8 new), they've drop a few,
& altered some

Quite a few new latin styles & they've dropped quite a few also.

A few ne Jazz styles, again they've dropped some & changed some.

Couple of new soul styles.

They've added some Mexican Styles
Dropped a lot of the Schlagers , Polka's & Waltzes in short the european styles. Pa3X still has some , but they're new ones.

So Donny,
if you're thinking about a PA3X ( haahaa) I'm doing a full list.