The Koshi looks to be a much better Clan Light than what we have... and it has 2 ECM variants (not sure of the timeline though) but would be still slow compared to the Commando even with Speed Tweak. It might be better than the Kitfox, but we'll see.
The Fenris is a dangerous balance issue... as with speed tweak, it is like a Cicada on crack, and will chase mechs @ 140kph. That is going to be something to look at.
The Loki is what it is, and I'm not sure if it'll be good or bad, but 65 tons @ 81kph is always scary.
Edit: Stock ECM on the prime variant will make it highly desirable, given no comparing mechs on the IS side to be found at the moment.
The Man O' War may be a nightmare for balance. Considering the Victor's nerfs, the Man O' War carries a 400XL engine, which puts the cap limit to shame (unless, you have a Dragon Slayer, but then you factor in the natural torso twist nerfs). Loadouts is up in the air, but the mere tonnage consumption for a large engine can limit it a bit. Still, it would be more durable than a Victor due to XL engine superiority (to be changed and reevaluated when it finally gets a penalty for the loss of a side torso).
Edited by Deathlike, 15 September 2014 - 11:46 AM.