Considering its status I doubt we will see any of it added to Legion, but then again it would be interesting to see FFG pull from stuff like the weapons or even vehicles for future content.
For those who want to dive into the wiki, here is the link . And because of the Wiki nature the pictures are small, I'll try to link the pictures to the pages for them to allow for better looks at them.
Shotguns, currently the shotgun in Legion is the one from Republic Commando used by the Trandosians which has reappeared in stuff like Battlefront 2 (DICE). If any other group gets shotguns maybe they will get a different version.
Alternate Miniguns, though I doubt we will see any other than the Z-6 which is used already for the Rebellion and with it being Republic tech likely showing up for that faction too.
Spider Shock Mine
Medium Ground Vehicles
Clone Hover Tank, the first image is without its turret on top. Looks like something made just for this game and rather very similar to the AAT.
IFT, the one we all expect to show up at somepoint.
AAC-3, though I'd honestly prefer to see the T2-B.
Heavy Ground Vehicles
AT-XR, an alternative ground walker for the Republic. Sort of looks like a snowspeeder squished down and put onto walker legs to me.
T5-B, because the Rebels need to add to the T-Series line of tanks. For those who don't know: T1-B , T2-B (Canon), T3-B , and T4-B
Rebel Dropship, came out before the U-Wing, but I definitely prefer the U-Wing and HTT-26 over this.
