Hi Osep,
Thanks for your request.
Yes, SEBLOD will be compatible for Joomla 4. It stays some points but it's almost ready.
We're waiting impatiently RC version(s) and the major stable version https://www.joomla.org/announcements/release-news/5833-joomla-4-0-0-beta7-and-joomla-3-10-alpha5.html
Thanks.