This is something that was unexpected. The Transformers Collaborative line started in 2019 with the release of repaints homaging pop culture characters/movies like Ghostbutsters, Back to The Future and few others. However, it's possible that the Universal Monsters crossover won't just be a one-off release but with many more to come, focusing on horror/monster characters from Universal Studio.
The first release, Draculus, is based on Universal Monster's Dracula. I believe it is based on 1931 Dracula, starring Bela Lugosi
In Package
Personally for me, Draculus has the best boxart and presentation, followed by Back To The Future Crossover (1st version)