Not a whole lot for the Magistracy so far out of 3145. I think they get mentioned off hand once in the new TRO, so I'd expect any Magistracy units to show up wherever the Capellan units show up. The Era Report wasn't that surprising. Not too much Magistracy action, beyond supporting the Capellans during their invasions. Some conflict, but mostly as replacements for garrisons while the Cappies go off to fight.
A new unit, the Canopian Lancers is mentioned (a sister unit to the Tau Ceti Lancers).
The Magistracy continues to have their own RATs (mostly). The `Mech RAT isn't too surprising, a few 3039 designs, and then a mixture of everything Cappellan or Canopian from 3050 onwards (From a CTF-3LL Cataphract to the PLG-5Z Pillager).
The vehicle RATs seem to be more of the usual. Nothing too shocking , some 3039 designs, some advanced designs, but nothing that really screams "wow!" (Pos and Pikes abound).
The Magistracy gets to roll on the Capellan's Battle Armor RAT, and not the Periphery General RAT. This means we miss out on things like the Marauder, Spectre (yes, both of those are BA, and not `Mechs) and the Ravager. On the plus side, we have access to something called the Amazon (We'll see in a future TRO) and a Shen Long (again, something we'll see) as well as the usual Capellan and Magistracy favorites such as the Theseus and Fa Shih and Ying Long.
Aerospace is similar to usual..a mix of older designs and Capellan designs. Even a Royal design or two. And a Clan design or two. DropShips are pretty standard, though the Leopard (PPC) continues to cling to the table, and the top 3 slots are filled with Pocket WarShips (or close to it). If you're going to be transporting a `Mech force however, you may wish to simply pick your DropShips :)
And of course, the RATs don't necessarily mean that's all we get. Just what they felt like putting on there.