No more Dominion
Just leaving it up here in case others are curious. Apparently Riot is under the belief that dominion is not as profitable as they hoped it would be at this day and age. Instead of updating it to current graphics/gameplay standards, they're taking it off to make room for more processing power for twisted treeline, summoners rift, and howling abyss.
I am unsure how this will affect the game. I am also unsure what they will do with the items exclusive to dominion. I am, however, unaware as to how important dominion would have been to the game. So I am leaving a poll up for those who wish to voice their emotions to Riot.