I've gone and made my predictions at Mugglenet

Scrolly scrolly scrolly.

Ron Weasley will...
Live

Hermione Granger will...
Live

Severus Snape will...
Live

Lord Voldemort will...
Die

Remus Lupin will...
Die

Ginny Weasley will...
Live

Molly Weasley will...
Live

Arthur Weasley will...
Live

Nymphadora Tonks will...
Something else

Luna Lovegood will...
Live

Neville Longbottom will...
Something else

Minerva McGonagall will...
Live

Peter Pettigrew will...
Die

Bellatrix Lestrange will...
Die

Draco Malfoy will...
Die

Rubeus Hagrid will...
Live

Fred Weasley will...
Live

George Weasley will...
Live

Charlie Weasley will...
Live

Fleur Delacour will...
Live

Harry Potter will...
Live

Is RAB Regulus Black?
No

Is RAB alive?
Yes

Did RAB destroy the locket Horcrux?
No

Is Harry a Horcrux?
No

Will Harry and Ginny end up together?
Yes

Will Harry and Hermione end up together?
No

Will Ron and Hermione end up together?
Yes

Will Draco and Hermione end up together?
No

Snape loyalties lie with:
The Order

Will Draco Malfoy redeem himself?
Yes

Will Percy Weasley redeem himself?
No

Will Hogwarts re-open?
Yes

Assuming Hogwarts does re-open, will Harry return?
Yes

Assuming Harry does return, will he graduate?
Yes

Is Dumbledore really dead?
Yes

Assuming Dumbledore is dead, did he plan his death?
Yes

Is Sirius Black dead?
No

Will any of Luna's conspiracy theories be found to be true? (If yes, please include which ones at the end)
We won't find this out

Is/was Snape in love with Lily Potter?
Yes

Will Wormtail repay his life debt to Harry?
Yes

Was Wormtail present at Godric's Hollow the night Voldemort killed Harry's parents?
No

Who will be the squib/muggle who uses magic later in life?
Someone else

Is Harry the heir of Slytherin?
No

Will Dumbledore's Army re-form?
No

Will the Muggles ever discover the wizarding world?
No

Will we ever see the other side of the veil?
Yes

Will Neville be the student who gets a job as a Hogwarts professor after graduation, teaching herbology?
No

Will Hermione be Head Girl?
Yes

Will Ron be Head Boy?
Yes

Will Harry be Head Boy?
No

Will we see time travel in Book 7?
No

Did Voldemort ever fulfill his wish to make Horcruxes out of objects belonging to each Hogwarts' four founders?
Yes

Is Ollivander working for Voldemort?
Yes

Will Harry's scar disappear?
No

Does Voldemort have multiple spies in the Order?
No

Was the green potion Dumbledore drank in the cave the Draught of the Living Death?
No

Will Dumbledore's defeat of the dark wizard Grindlewald in 1945 be relevant?
No

Will Hagrid rekindle his romance with Madam Maxime?
No

Will Harry go through the veil?
Yes

Is the veil the gateway to the underworld?
No

Will we see the Mirror of Erised again?
Yes

Will McGonagall lead the Order of the Phoenix?
Yes

Will Voldemort ever realize his undying love for the giant squid?
No

Who will win the final battle?
Harry and the Order

In 500 words or less, describe what will happen in Deathly Hallows?
The trio have to hunt down all the horcruxes and destroy them, but they will have help. Snape will be loyal to Dumbledore. At some point Harry will end up at the Ministry, where he will finally figure out what's up with the veil, and why it harmed Sirius. Harry will be able to use the 2-way mirrors to contact Sirius somehow...eventually Harry will have to confront Voldemort, but Voldemort WILL be defeated. I'm hoping Umbridge gets eaten by the qiant squid, and Harry becomes Hogwarts headmaster in the epilogue.

Thoughts in the comments, and let us know if you've done yours too.