LoL Capture the Flag Game mode (Ranked and Pro play)

So i have an idea that all of you league players want. what would happen if you made a capture the flag type gameplay??? that was more than just one round of fun but best of 5 rounds of fun. and each round would last 5-10 minutes depending on how close the capture limit is and the timer possibly freezes at 5-10 minutes depending on wether or not champions hold the flag. also an incentive to go out of your base and grab jungle farm to get ahead of your opponents? and the big bosses give you one flag capture a piece for instance baron is 1 flag. dragon is 1 flag. which would stop people from just puppy guarding the flag at home base only middle lane and home base has towers and there are 4 lanes not 3. and 6 players playing not 5. any thoughts ideas?? or is this concept too much to undertake?