Think about it..
*What other gods can they create?
*Unless new gods came in/dead ones get revived or materialized (with alchemy maybe?)
*Releasing mabi installer in a cd.. obviously when you do this is because you are not going to do a lot of updates.. (although.. this is nexon, so maybe they are just taking our money but idk)
Well thats my opinion, would be good to know others
Well, we know about Lymilark, who's supposedly a higher god than what Morrighan and Nuadha are. So there's possibility that there will be more gods to chose from. Go onto Wikipedia and look up Celtic mythology, and pick a god/goddess. And that's assuming that the dead gods and goddesses don't come back, but they probably will, since Cichol did come back at the end of G12.
And even then, Chapter4 is what people are calling filler, because it's more about Shakespeare's plays than actually about the story of Erinn, even though Morrighan is tied into Chapter4's story. And since we know that Chapter4 is G13-G16, that means we have at the least 4 months until we get back into the story of Erinn, and the Korean version usually has Seasons to go with the Generations, to add more content to the game without releasing the new storyline. So that probably puts time to C5 at about 8-10 months. So we've still got some time left before we know if it's the end of Mabi or not, though we'll have to see if Mabi 2 is truly a sequel or just a massive graphics overhaul.
As for the installer on the DVD, it's just a way for Nexon to take our money, since it really is just the installer, it can still be updated. All it does is eliminate the person from downloading the 1.5GB installer for Mabi.