that is a nice suggestion mate . slots are exciting games and always been favored by many people/gamblers . many site nowadays are now adding this game along with adding new cryptos but i see that this site already add eos as a new currency . eos was a good coin too no doubt but i havent seen eos on other sites that i play with . idk if they have a forum or not , but we have this comunity bitcointalk where they can add a poll if what features and games they should add on thier next update .
Personally, slots never make me excited. I've even seen them in real life and I get the attraction, all the sounds and that money tinkling in but it always reminds me of old and nowadays the slot titles some of them really do look quite old as someone said. I'm still not in favor of a lot of slot titles, but I do agree we should always cater to the demand. So yeah, let's see what comes and what happens. And the survey too, definitely proper.
About EOS, I personally don't know;)