Main thing I’m hoping for are refinements to steering, suspension, diff etc from late model cars. Also adaptive cruise updates. Not worth loosing a tune over but if your stock may see some improvements.
Looks like many of us will receive the latest ISTEP if we take in for this recall.
https://www.supramkv.com/threads/recall-data-communication-module-dcm-update.23220/page-3#post-373529