It's my understanding that Nosolorol is the current publisher of Aquelarre in Spain. Nocturnal Media is responsible for the kickstarter that got Aquelarre translated to English. Nocturnal Media hasn't had an update on their website since 2018, which made me a little curious. So I did a little digging. It would appear that Stewart Wieck (the Owner of Nocturnal Media) passed away suddenly after a light fencing practice in 2017. Stewart was the leader of 18 active kickstarters, Aquelarre being one of them. Because of that unexpected tragedy it took a campaign that started in 2015 till Feb 2020 to actually see books ship to people.
So I looked into Nosolorol a bit and they have a couple active kickstarters themselves. For game translations. A look on their website and you can see a lot of familiar titles translated to Spanish. There are quite a few books for Aquelarre, maybe they will themselves start a campaign to have more translations made. If there is enough interest.