Here's something I've been toying with since the Vigilante came out. I'll eventually come up with a plot for a game with this idea, but for the moment, I'm just futzing about with the mechanics. I'm thinking of a superhero-ish game, sort of a fantasy-style Justice League, and having each of the players be a form of vigilante (preferably different archetypes, but we'll see about that as we go).
So! While I appreciate the idea behind the Vigilante with their dual identities, it feels to me like they have relatively little incentive for hiding behind their social identities much of the time, unless the plot specifically calls for secrecy in some way. I think let's give them some more motivation, in the form of something every player likes to get ahold of: More power!
Specifically, I think I'll give them an interesting form of Gestalt. When in their social identity, they'll have access to the normal set of vigilante abilities and nothing else. However, when they transform into their vigilante identity, they'll also be able to use the full power of their gestalt class as well, using their full array of abilities and skills, and maybe even some stat boosts or limited mythic power if it feels appropriate.
To temper this, and give them more of a reason to not just run around full-power all the time (not everyone can have a sickly aunt that could be used against you if your identity is revealed), I think we'll give them some sort of limiter on their full abilities. Something along the lines of only letting them use their full vigilante abilities for, say, ten minutes per day for every level. We'll need to justify this in game with each player having some sort of limited source to their power, either by some central guiding force or just ask each player to work out why they have a limit.
What do you guys think? Suggestions? Improvements?