[quote=@Write]
Eh Talk to Lugu about it, wasn't my call. I will say this though, in a roleplay, something without stats or crunching numbers really. There isn't much of a difficulty. There is a conversation, relationship between the players and whoever is playing the antagonist. Saying it's easier to cooperate with five people is similar as me saying it's unfair for one semblance to be stronger than another and all that. There's hardly a game to break. Either way, I'm no GM so talk to him about it.
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I've actually brought up the issue of different powered semblances but that's a conversation for another day.

I think letting Bianca join rejoin her team after she has already been replaced is a bad idea. This indicates that if someone drops off from a team they are welcome to return to that team no matter who has filled there spot. This is a sign that if you drop off from Heroes of Beacon you are always welcome to return (which as we've seen is not true, we've had people wanting to return but be disallowed). It also means that the teams have no limit. 

Team CODE has lost both Aurellius and Marcus. If there RPers return are we expected to make a six man team? Robert's original team lost everyone except him. If all of them wanted back in would we create a seven man team? And as this goes on more people from various teams will drop out, it's a fact of RPing. If all of them return could we not end up with teams that are ten or fifteen strong? When do we draw the line between being able to rejoin your own team and having to join a new one? Those team number limitations are there for a reason, in Team Vs Team combat a five man team would have an advantage so would that mean that every time a 5 man team goes into something like the Vytal festival they have to chose someone not to participate at all?

This is obviously Lug's decision but I think if we start bending the basic rules that RWBY has in its cannon things are going to start falling apart. Not saying Bianca shouldn't return but I think a prolonged absence like that means that they cannot return to there old team.