I think that the more HIVE blockchain becomes popular, the more Splinterlands will become as well. We could also see different games to be built on the blockchain in the future. Therefore, there could be some types of game that will adress to different people. For example, why not a football manager game? I would definitely play it :)
And vice versa - there are a lot of people/ accounts playing and like Blanchy wrote - a couple weeks back it crossed the billion games played mark. quite incredible.
If you want to see a visualization of the content on each block, this is a great site:
https://hiveuprss.github.io/hiveisbeautiful/
SL is Splinterlands.
I think the manager games are coming :)