With the E-Wing reveal now up (missing the maneuver dial, what's up with that FFG), the survivability of this thing is pretty apparent.
Here's how I'm building -
3x Knave Squadron Pilot
R7 Astromech
Fire Control System
Stealth Device
Since the low pilot skill means you will be attacking last, you can fully utilize the R7's functionality. Basically, the E-Wing with this configuration will be rolling 4 or 5 defense, with the possibility of a forced re-roll for the attacking player. Oh yeah, and did I mention it can perform the evade action?
All of this, plus the fire control system, means you will almost always have a target lock. I'm not usually a big fan of expensive low PS ships, but it's hard to discount how long these things will stick around.