Ravens are a special case, as I noted. For them, providing ASF, assault/PWS droppers, jumpships, and warships would mostly substitute for ground forces. The Foxes are not troop starved, we have never gotten the sense they are scrambling to get troops for anything- plus their secret stash. But none of this is really a stretch . . . the just Abjured Nova Cats sent a whole galaxy to participate in the Star League, so it is not a stretch at all. But that is not the starting point either.
Look at the stampede of warriors during the Harvest Trials to be a part of combat in the Inner Sphere, the social pressures already exist in the Clans- particularly among the average warrior, who make up the largest portion of any touman and cannot be ignored (which is why Ulric referred Vlad's nonsense).
The Falcons are going to be going into battle with Alaric, such is the life of the Black Falcon Watch. To keep the Black Falcon Watch clusters elite/selective, then they will have to create some farm clusters where stand outs can make their reputation for being selected. Real question is can they re-integrate the group on Sudeten and what happens with the Highlanders. Be hilarious if we ended up with a Clan Jade Falcon based on Northwind, and then the Falcon Remnant based on Sudeten who do not see themselves as being bound by the ilClan Trial's fall out.
Jaguars? They have to prove themselves- heck, they have to win themselves some support structure! Alaric is only going to prop them up so long, eventually they will have to set up some sort of territory and production for the Jaguars. Everything they have right now would IMO be devoted to the Wolf League, it is how they will be reborn.
Cats? You have a few Spirit Cat clusters and a Nova Cat cluster on Marik . . . but Kishio is out there somewhere waiting to return, in the ilClan era. He has some troops, but more importantly a collection of lower castes and IIRC some sibkos. The Cats will have to IMO officially re-unite, which is what has happened de facto, but the culture will need to become one again. Their partnership with the Foxes and both being included in the new FWL offers them a unique position and something Alaric could diplomatically leverage if he is so inclined when he turns in that direction. Nothing indicates the Cats have a dislike of the Wolves, what is noted is they are the only ones in the League the Wolves extend formal Clan trialing protocols to- the Cats have gotten the message they have the respect of the Wolves.