There should be a new gamemode

I could see a handful of champs that might have an unfair advantage in this mode.

Well GG

If something like this happens, there need to be a lot of new balancing and design mechanics added, otherwise it's just who can arrive at the flag first.

The game definelity need more game modes. Such as "Smite". When I get bored playing SM I try ARAM and I still feel bored.

This is a really good idea but as someone just said about it , there would be a lot of champions with an heavy advantage like twisted fate or Tahm Kench . Still , there could be patch for it like : Teleportations auto-drop the flag . Flag Carrier is permanent visible and many things to make is more fair for any champ. However, this is a good idea of game mode which could be really funny . Of course , it should be tested first . :)

That sounds like dominion, just saying

Making a new mod would take slightely less than a year, and Riot just finished a mod, nexus siege, I don't think there will be a new one soon, and that's not bad at all, I preffer them working on new champs and balancing them and improving the game experience than working on new mods.

RIOT is ignorant. Any PvP game worth it's salt has that mode.