My only concern with #1 is that we could end up with two really short pages that repeat almost the same thing. The ones that have had a decent appearance in Adventures should be fine. That leaves Ryoku and Bronius, which could be worryingly short. With all that said, I would not be opposed to the split, the current page isn't great either. Here's hoping they both have larger roles in Adventures and/or the anime Plasma arc so it's not a concern.
Very much support #2 and #3.