Will Allah forgive the Satan (Al-Shaytan/Iblis) if he decided to repent to Allah?

Okay, this has been on my mind the whole day. And after searching the entire internet, articles, youtube videos and what not, I cannot find a legitimate answer anywhere. So, I decided to post the question here myself. PLEASE NOTE: The question isn't why Allah didn't forgive Iblish when He forgave Adam (AS) and Eve (RA) for their sins. The Question is WILL ALLAH FORGIVE Iblish IF he decides to REPENT TO ALLAH (SWT). I came across a Dr. Zakir Nayek video during researching and while it did not answer the question (not even close) he mentioned that ***Allah (SWT) has filled Iblish's heart with sins*** (and Allah [SWT] knows the future- yes, undoubtedly). Why would He fill his heart with sins? Isn't it contradicting with the FREE WILL we Mankind and the Jinn possess? What if the Devil finally came to the realization of his horrible mistakes and decided to seek Allah's forgiveness? For indeed Allah is the most Merciful and the most Forgiving, will Allah (SWT) not forgive him? If no then why not?