The biggest question is: is Red Hat going to release Tower as open-source ?
Red Hat is an open-source company and I would expect them to do so but they didn't even mention Tower.
EDIT: From their FAQ[0] it's not clear either. It seems to be pointing towards no.
> Red Hat plans to continue to develop, sell and support Ansible and Ansible Tower.
[0]: https://www.redhat.com/en/about/blog/faq-red-hat-acquires-an...