So far only 5 for me.
-Nemesis Prime with the KO armor
-Ultra Magnus with armor
-Rodimus with armor + Sidearm
-Superion with the Hulk limbs
-Starscream with his coronation set
Does having Autoscout count as "upgrading" the Soundwave team?
Other than that, a few figures have been "upgraded" with shiny stickers from reprolabels.