Personally, and especially after looking at the "original" designs, I very much wish they had just kept the game with the already existing Toho characters. There are more then enough left that weren't featured in the previous two games to last the series awhile at its current rate of adoption.
What makes me sad, though, is that we know that two of the fighters in Unleashed will be "original", while the early projection was to have "16+" total characters... compared with the 18 in Save the Earth. In the past, those figures have been very close to the actual amount (the previous game was going to have 19, so they stated 18+ before one was cut). This time, I assume it will be larger then that, but it doesn't leave a whole lot of room for a big increase in the actual Toho characters over the last game.
So yeah, color me disappointed. These guys look too much like scrapped characters for Incognito's "War of the Monsters" then actual creatures from the Godzilla movies... but then again I am a diehard fan and perhaps these types of things matter to me more then most.