Not sure. He was asked this at the interview. He didnt give an answer either way.I got the impression he wanted an apology first or at least a discussion on his grievances. Charles has said he is invited. But several papers yesterday had articles saying he will be invited but is expected not to come. Can't really expect all this news and people not to wonder.
I also read if he goes he won't have an active role. It's usual for all the Dukes to kneel before the new monarch and swear loyalty but only William will be doing this apparently.