Will Riot ever add a new map?

I disagree with that, I think it is very possible that they introduce a new game mode, maybe not in the near future but sooner or later players will loose interest in league similar to what happened to world of Warcraft and Riot will lose many of their players if they do not add something new. Yes, Dominion was a complete failure but its not because they players don't want to embrace new game modes it just wasn't something people enjoyed. Also, it doesn't necessarily have to be a new "game mode" I would like to see a new, Larger map, that is maybe like 8vs8 or 10v10 why could deftly be chaotic to see the last but I'm sure they could find a way to make it work, this "game mode" would still have the same fell of summoners rift just maybe more objectives , new objectives and what not. Take a look at what they are doing to ARAM, I love the bilgewater ARAM map idea so obviously they have the potential to add a new map that has the same core of summoners rift (take down objectives kill nexus) but also adds a new flavor. If they did do this I think they should give the map a much different theme then summoners rift peaceful type thing like maybe a huge chaotic battle field (10v10 or 8v8) with fire everywhere that damages you if you stand in it and really just a different feel to the normal summoners rift.