Time to get some official Lorcana news from the source!
All you need to do is fill in your email address, tick the check mark to give your consent, then click on the subscribe button.
After that, the website updates with a thank you for your interest and you get an email!
The email requires you to click on the link to confirm your subscription but the confirmation page appears to have issues occasionally and an error message pops up instead.
Personally I got the error message the first 2 times I tried and succeeded on the 3rd try.