As per the topic.
Mine would be the new Criminal identity, new Corp identities, and Criminal decoder ICE.
New Criminal Identity. Gabriel Santiago isn't bad, but I chafe at how his ability is so focused on the Corp's HQ. It's a solid, fitting, and flavorful ability but I'd like to see a Criminal who is more flexible when it comes to target selection.
New Corp Identities. We already have Whizzard and Chaos Theory; the Corp needs some love!
Criminal Decoder ICE. Criminals don't have any in-faction way for defeating code gate ICE beyond using Femme Fatale to specifically target them, and that's only against one particular instance of a code gate. A little outside their faction, their only option is Crypsis, which isn't geared specifically for code gates and is slow to use. Criminals have to dip into another faction's 'breakers to beat code gates efficiently.