Anyone up for 3v3v3?

I only have a very basic idea on this but I'm still thinking to work out more details. The map would kind of (just slightly) look like how the Twisted treeline does with each team having two lanes leaving the base and a jungle in the middle although instead of the jungles being connected they would be separated by the lanes. The lanes would curve off near the center (Team one would have one lane connected to team two's area and one lane connected to team three's area and so on) leaving some jungle there where the big "boss" monster would be. If an inhibiter is destroyed, super minions would spawn from the teams base that the lane is connected to (Team one kills team three's inhibiter team one spawns super minions in that lane, same as normal). The jungle creeps would be very similar to the ones in Twisted Treeline (Wolves, wraiths, and golems seem to be the usual on both the Rift and the Treeline).

Now, there are some problems I'm still working out and would like to ask the help of anyone reading!

1. What happens if a teams Nexus is destroyed?
2. Will this map have any passive buffs from the map itself or any buffs from monsters?
3. Would there be any items that you can only buy in this mode?
4. What look or feel would the map have? what would be the story behind it?

When a team's Nexus is destroyed their minions will stop spawning, but not the players. They will still spawn at base but suffer from a debuff (The main part being longer death times the rest I'm not certain on yet, ideas are welcome). I'm not sure if the main structure will be a Nexus or not because traditionally once a Nexus is destroyed the team lost and then bam, nothing happens after that. I don't have too many ideas about what else the structure could be though so I wouldn't mind ideas from others. The map would have a passive buff that would grant all players increased mana regeneration, a bit of cooldown reduction and slightly shorter than normal death timers. The only buff you can get from the jungle on this map would be from killing the "Boss monster" in the middle of the map (again, not sure what the buff may be yet). There will be some items you can only buy in this mode but coming up with them will take a bit of time (Please feel free to come up with your own items to add) but there will be some items that will be changed or removed for this mode. I haven't come up with a look to this map or too much of a story (I'll tell you all when I get it more ironed out) but each of the three sides would have it's own unique look to it. I know this is in the early stages but I didn't want to come up with everything on my own, I wanted to be more of a team effort by the community to make it into something we can all enjoy! Please feel free to leave a comment with ideas, worries, or any type of constructive criticism you can come up with! I look forward to any ideas that people have! (P.S. my spelling or grammar may be off, sorry >.< Also, I wont be able to reply for a day or so, I'm working night tonight T-T) I wrote this in a rush so I may have left something out, sorry xD

-The Plot Twist