I saw two identical works from different authors, the only difference is that one has only the After Effects project, and the other has Premiere Pro and After Effects. In other words, you can buy a template on Videohive and remake it for the Premiere Pro project, then sell it in this form?
It depends - is it the same author?
No, the authors are different
It’s possible that the original author has an agreement with someone else to reproduce the item for a different format but your best option would be to ask the author(s) using item comments