I find it hard to think that they would have too much more incentive to release some more character much less 5 of them before the 31st of January. At this point i can't imagine how big the starting roster can get and we know that Sonic and Snake are unlockables and for some reason i think Olimar will be one as well. Anymore releases at this point would be just to keep us happy and those characters too will most likely be unlockable as well.
yea i think sonic snake and olimar are hidden characters as well.
So Dj if what you predict is true we would have 8 hidden characters total or 8 hidden characters revealed before the realease