This is where i'm at, almost, I would be very displeased if it end's up being a bunch of existing human mercs. I chose to play Tohaa for the way they look and play, I don't want humans if I did I would have played one of the many human factions, and as you said it's really bad because we hardly get releases. If vanilla Tohaa had new releases on the horizon I wouldn't care as much that our sectorial is being squandered by humans, but as far as I know cb has said that vanilla Tohaa is basically a completed faction.
If it ends up being Tohaa or other alien mercs just so that they aren't available in vanilla that is more than okay. I just don't see any reason to give Tohaa a sectorial that is human mercs + some Tohaa other than a huge fuck you.