So I am drawing a blank on the available System Upgrade choices. I looked in my binder and I only have FCS, Advanced Sensors, and Sensor Jammers. I have every expansion and I thought there were more options. Am I missing any?

http://geordanr.github.io/xwing/

Pick a ship, see what it can carry

Enhanced Scopes

FCS

Accuracy Correctors (coming)

Advanced Sensors

Sensor Jammers

Advanced Targeting Computer (coming, TIE Advanced only)

So yes, not a whole host of options, but what there is is interesting enough.

Thanks Dagonet. Ok so I must have lost my Enhanced Scopes card. That sucks! What ship(s) did ES come in?

Rebel Aces.

The listbuilder I linked to also shows you what packs provide the different cards, very handy if you're looking for an upgrade you don't have the expansion of yet. .