https://www.youtube.com/watch?v=yrVYHVTl_Ys
 
Interesting

I assume these are just programs... not new sample content???

I'm not 100% sure, but it seems like the creator actually imported his own samples into ST3 and made programs using them.

Darn..I could have swore I saw verbiage somewhere that said they converted samples to ST3 format but I can't seem to find at the moment.  AH.. I found this on IK's forum "It contains 110 brand new instruments (st3i) + 24 multis (st3m). Feel free to experiment, most of the samples taken from [MHEO] collections, converted and optimized for ST3."