I would be happy with this:

Prince Prince Remastered
(with Extended Sexy Dancer)

Prince Dirty Mind Remastered

Prince Controversy Remastered
(with Gotta Stop (Messin' About) Long Version & Let's Work Dance Remix)

Prince 1999 Remastered
(with Extended Version 1999, Little Red Corvette Dance Mix, Horny Toad, Irresistible Bitch, Possessed, Moonbeam Levels)

Prince Purple Rain Remastered Special Edition
CD1: Original Album Remastered
CD2: Let's Go Crazy Special Dance Mix, Erotic City, I Would Die 4 U Extended Version, Another Lonely Christmas, God Long Version, God Instrumental (Fathers Song), 17 Days.

Prince Around the World in a Day Remastered
(with 4 The Tears in Your Eyes, America Extended Version, Hello Extended, Girl Extended, Pop Life Extended Version, Pop Life Fresh Dance Mix, Raspberry Beret (New Mix) and Paisley Park (Remix)& She's Always in my Hair Extended

(this one would probably need to be a double CD set...

Prince Parade Remastered
(with Kiss Extended Version, Anotherlover Extended, Love or Money Extended, Alexa De Paris Extended, Mountains Extended Version), An Honest Man, Others Here with Us, In All My Dreams, Old Friends 4 Sale (original), Movie Star, A Place in Heaven

Prince Sign of the Times Remastered Special Edition
CD 1: Album CD1 Remastered
CD 2: Album CD2 Remastered
CD 3: More Signs
Housequake (7 Minutes MoQuake), U Got the Look Extended, Hot Thing Mixes, La, La, La, He, He Hee Extended, Shockadelica (Extended Version), Good Love, Rebirth of the Flesh, Crystal Ball)

Prince Lovesexy Remastered

with original tracks tracked and remastered plus Alphabet St. (This Is Not Music, This Is A Trip), I Wish U Heaven (Parts 1,2 & 3), Glam Slam (Remix), Escape, Scarlet Pussy, Cross the Line.

Prince Batman Remastered
with Batdance (The Batmix), Batdance (Vicki Vale Mix, Partyman (The Purple Party Mix), Partyman (The Video Mix), The Scandalous Sex Suite, 200 Balloons, Feel U Up (Long Stroke), Sex, I Love U In Me, Vicki's Waiting Live, The Future Remix, Electric Chair Remix.

I could probably live without the rest. Graffiti Bridge maybe..

What do you think?

Anything I forgot? Any other obvious demos I missed?

Maybe I should give it to my friend at Warner!!

Prince Controversy Remastered
(with Gotta Stop (Messin' About) Long Version)
Gotta Stop is from the Dirty Mind era

Prince 1999 Remastered
(with Extended Version 1999)
Which extended version?

Any other obvious demos I missed?
just a few:
From The Work, Volumes 1 and 2 (which aren't complete)

Leaving For New York, Soft & Wet, You, If I Love You Tonight, Hard To Get, Down A Long Lonely Road, Work It Out, Make It Through The Storm, Wouldn't You Love To Love Me?, Just As Long As We're Together, Donna, Miss You, Lisa, Broken, Tick Tick Bang, She's Just A Baby, Feel U Up, Irresistible Bitch, Strange Way Of Saying I Love U, Turn It Up, Do Yourself A Favour, Purple Music, DMSR, Extra Lovable, No Call U, Something In The Water (Does Not Compute), Delirious, Moonbeam Levels (A Better Place To Die), Baby You're A Trip, Lust U Always, Chocolate, Vibrator, G-Spot, Wet Dream Cousin, Climax, Possessed (vocal), Electric Intercourse, Darling Nikki (long version), Beautiful Ones (long version), I Would Die 4 U (complete 31-minute version), Computer Blue (the longest possible version 11:58), I Would Die 4 U (long studio version 3:21), Erotic City, A Million Miles (I Love U), Take Me With U (long version), Manic Monday, All Day All Night, High Fashion, Mutiny, Desire, Yes, Susannah's Pyjamas, Feline, Nothing Compares 2 U, Miss Understood, Around The World In A Day, The Dance Electric, Possessed (Inst), 100 Mph, 100 Mph, Jerk Out, Kiss, Little Girl Wendy's Parade, I Wonder U, Other's Here With Us, Old Friends 4 Sale, Neon Telephone, Heaven, Love Or Money, Old Friends 4 Sale, Splash, Wonderful Ass, Eternity, Can I Play With U, U Gotta Shake Something, Dream Factory Intro, Dream Factory, Train, Strange Relationship, I Could Never Take The Place Of Your Man, A Place In Heaven, Witness 4 The Prosecution, Movie Star, Last Heart, All My Dreams, An Honest Man, Teacher Teacher, It's A Wonderful Day, Crystal Ball, In A Large Room With No Light, A Place In Heaven, Girl O My Dreams, Can't Stop This Feeling I Got, We Can Funk, Data Bank, Euphoria Highway, Get On Up, Baby Go Go, The Sex Of It, Witness 4 The Prosecution, Rebirth Of The Flesh, The Ball, Big Tall Wall, Sexual Suicide, Power Fantastic (Intro), Crucial, Fuchsia Light, God Is Alive, God Is Alive (Reprise), Superfunkycalifragisexy (Inst), I No (Remix), We Got The Power, If I Had A Harem, If I Had A Harem, I Wish U Heaven, Positivity, Alphabet St., If I Love U Tonite , Girl Power, The Line, Cookie Jar

sign of the times: I think disc 1 should contain the complete album (it fits) and disc 2 the extended versions and b-sides and I don't see what Cross the line is doing on Lovesexy. Like Thataintfunky said, if you're gonna include outtakes there is so much more. For the rest: looks great!