Don't get your hopes up with it being possiby ICS. If you looked waaaaaay back in the development for the phone there were already source avail on samsung website for the phone but it wasn't gingerbread was just plain froyo.
I've got to be honest with ya i could care less about ICS on the sidekick give me good old asops ginger or CM7 an I'll be happy camper.
-[Nexus 5] 4.4 paranoid
-[Nexus 4] cm10.1 nightlies
-[SE X10miniPro] MiniCM7.2 naa
-[Samsung Sidekick 4g] RubiX Xcel v1.006
-[Note 8] 4.4 cm11