I think everyone from the gaming tag is waiting for the communities :)
What I hope for is that there will also be "sub-communities" because gaming is still quite the large thing and for example a person playing Overwatch won't really be interested in posts about DOTA.
I was thinking the same thing, there is plenty of room for esports, fighting games, individual games. We can work together to support each other if you start some. Gaming is huge. This is just a starting point.
Hey I remember you guys are running a hearthstone tournament, you can make a community for prize gaming, that could be big.