The anti-borg weapons have [CritD] [Borg] plus either [CritD], [CrtH], [Dmg], or [KB3]. The [Borg] on these weapons deal 10% additional Dmg vs Borg as Kinetic (the old weapons give a flat +15 kinetic which is far superior). Pretty much they are junk. I only have Mk XII pistols (was going to get the others but will probably not) and each pistol costs 9470 Dilithium. All four pistol types are in the store. I have heard there is no pulsewave.
Romulan weapons were a disappointment. The Mk XII Rifle unlock (notice it says Rifle instead of Rifles) only offers a Romulan Plasma High Density Beam Rifle. Likewise Mk XII Assault unlocks only a Romulan Plasma Assault Minigun. There are 7 mod versions of either weapon (of which 6 are junk). They also cost a whopping 14205 Dilithium each. However, both have a [CritX]x2 (+4% crit, +20% crit sev) version in the store, which is pretty nice, and they use Romulan weapon skins. Also, these weapons have both the plasma proc and the disruptor proc.
They said something about not including space weapons because of the tier 4 kinetic damage proc, basically said it wasn't needed anymore. Think this was back in tribble days, would still be nice to be able to get space weapons.
craptic didn't know how to make the borg proc weapons work as intended so their solution was the remove their availability and give you an optional passive damage proc (2.5% for energy weapons, 5% for projectiles) at 725 kinetic damage with 100% shield penetration. Lemme just do the math here... carry the 2, nope, 1k damage per hit on torpedos vs 725 every 1 out of 20. seems slightly lacking in its prior efficiency. Granted, this isn't a borg only proc, but still, seems quite gimped compared to the original proc.