The card text is written in such a way that it seems they were purposefully leaving the possibility of multiplayer games open. Also they have repeatedly refused to comment on multiplayer games of L5R. They could have easily just said it was not going to be supported. So I think your hope is justified. Though I would be patient because I'm sure they plan to ensure the 2 player game is solid and well adopted before they start talking about official variant gameplay options. Other LCGs have multiplayer modes, draft play and Netrunner even has a legacy mode expansion so they are certainly not afraid to try alternate gameplay modes in their LCGs.
My thoughts exactly.
While watching gameplay videos I came across several times wordings such as "Choose an opponent.."; "an opponent's character". The question immediately came to my mind "Why say it like this in a 1v1 game?" They could just say "Your opponent.." or "Your opponent's character.." etc