What did the biggest new IP (on HD consoles) this gen do? (i.e. Assassin's Creed)
- Build up huge hype from E3 itself.....introduce the Producer who happens to be a hot woman!
- Amazing marketing on the level of a blockbuster game....and effective marketing (who remembers the Altair leaping from the clock tower Assassins Creed TV commercial? It was stunning...people in school were talking about it) and it had a kind of semi-unique concept..
- Launch early in the gen to get maximum exposure
- Be very good itself
- Release near the holiday season
So I do agree with your points in the OP...but they aren't absolutely necessary.....then again Assassin's Creed is an exception of sorts in terms of a new IP.
The other two really big New Ip's this gen (uncharted, GearS) are exclusive.
