Is Prince Phillip in Heaven right now?

If there were such a thing as an afterlife, I suspect most of the members of that wretched family would be headed to the other place.

No, he's in Windsor Castle.

 NOPE::::::::::::::::::::::::

Does anyone ever get out of the Bible hell?
Rev. 20:13, 14, KJ: “The sea gave up the dead which were in it; and death and hell* delivered up the dead which were in them: and they were judged every man according to their works. And death and hell were cast into the lake of fire.” (So the dead will be delivered from hell. Notice also that hell is not the same as the lake of fire but will be cast into the lake of fire.) (*“Hell,” Dy, Kx; “the world of the dead,” TEV; “Hades,” NE, AS, RS, JB, NW.)
Why is there confusion as to what the Bible says about hell?
“Much confusion and misunderstanding has been caused through the early translators of the Bible persistently rendering the Hebrew Sheol and the Greek Hades and Gehenna by the word hell. The simple transliteration of these words by the translators of the revised editions of the Bible has not sufficed to appreciably clear up this confusion and misconception.”—The Encyclopedia Americana (1942), Vol. XIV, p. 81.
Translators have allowed their personal beliefs to color their work instead of being consistent in their rendering of the original-language words. For example: (1) The King James Version rendered she’ohlʹ as “hell,” “the grave,” and “the pit”; haiʹdes is therein rendered both “hell” and “grave”; geʹen·na is also translated “hell.” (2) Today’s English Version transliterates haiʹdes as “Hades” and also renders it as “hell” and “the world of the dead.” But besides rendering “hell” from haiʹdes it uses that same translation for geʹen·na. (3) The Jerusalem Bible transliterates haiʹdes six times, but in other passages it translates it as “hell” and as “the underworld.” It also translates geʹen·na as “hell,” as it does haiʹdes in two instances. Thus the exact meanings of the original-language words have been obscured.
2 Thess. 1:9, RS: “They shall suffer the punishment of eternal destruction* and exclusion from the presence of the Lord and from the glory of his might.” (*“Eternal ruin,” NAB, NE; “lost eternally,” JB; “condemn them to eternal punishment,” Kx; “eternal punishment in destruction,” Dy.)

What does the Bible say the penalty for sin is?
Rom. 6:23: “The wages sin pays is death.”
After one’s death, is he still subject to further punishment for his sins?
Rom. 6:7: “He who has died has been acquitted from his sin.”

no                                

No, he’s waiting to occupy the eventuality of all mankind......the grave!

No. His body is being preserved at a special facility for that time in the future when cloning and ´rebirths´ will be an actual thing.

We're not the Judge - God is. So we can't say

This is complicated by the fact that he's worshipped as a god on a Pacific island.

Although only God and the individual concerned can know whether they're Christian, there's good evidence that he was, more specifically Greek Orthodox.  The Bible appears to claim that between death and the Day of Judgement, the dead are unconscious, to be raised on that day, and it isn't clear either whether there is such a place as Heaven either.  An earthly paradise is more in keeping with the description in the Book of Revelation and elsewhere.  So, if Christianity is true, the answer is that no he isn't, but one day he will come back to life in an Earthly paradise.

According to the people on Tanna, he will now manifest himself as a deity on their island, bless their crops and himself usher in a utopia.  I don't know what they think about Heaven.

Yes, the great spirits will take him.