In plain English...
I think to answer the question is to be in his heart and judge accordingly. I am not qualified to answer the question in the title of this thread. I am qualified, we all are, to have suspicions based on the available evidence.
Here's mine:
Remember how Wierwille said he was in those theological cemeteries... errr, seminaries, and they talked him out of God's Word until he no longer believed the words "holy" or "bible" on the cover? (Honestly, why wouldn't he believe "bible"? But I digress).
I believe that is the last honest thing Wierwille said. Everything that comes after that moment is consistent with a con man using people's hunger and thirst for righteousness for his personal gain. EVERYTHING. Victor Paul Wierwille, in my opinion, was no more a Christian than I am today, no more confident in Genesis through Revelation than L. Ron Hubbard was in Dianetics. He sold a product he did not buy.