I posted this on another site, so...
My idea of rebooting would probably start in a fashion similar to "Batman Begins", with a late-20-something Clark Kent - bearded behind sunglasses, a rucksack slung over his shoulder, wearing a black hoodie and a red-with-blue-sleeves varsity jacket with a big chenille yellow S on the back - already on his way north. He stops at a greasy-spoon in Barrow, Alaska - one of the northernmost points of the U.S. - owned by an Inupiat fishing family whose former business has been severely curtailed by increased oil drilling operations, hence the Lexco tanker trucks parked outside (yeah, I know it's called Lexcorp in the comics...). You can tell the dad at the register isn't used to this kind of work; the daughter waiting tables even less so. It doesn't help when a group of ice road truckers walks in with one in their number who apparently is having a very bad day; indeed, after Clark begins carrying on a conversation with the owner (and then his daughter) about being far from home, the daughter returns to the truckers' table with coffees and slips on the ice they tracked in with them, spilling coffee all over the grumpy one, who promptly cusses her out and in turn prompts her dad to kick him out, which compels the surly one (against his buddies' protests) to make a snide comment about the one thing she probably could do right and he grabs her, and this ends with Dad coming to her rescue and getting knocked to the floor for his trouble.
Clark can no longer stand this and tells the bloke to apologize, so the fellow responds by thrusting a good right jab - against Clark's wishes - into Clark's jaw...which shatters every bone in the guy's fist. Clark decides that might be as good a time as any to hightail it out of there, and sneaks aboard the first ship heading for the Arctic, literally jumping ship and hopscotching Fleischer-style from one iceberg to the next.
Unfortunately, disbelievable though the account of his presence at the diner is, there is at least one person who believes it...CIA senior operative Nathaniel Hardcastle. Hardcastle, we discover, has been tailing Clark for the better part of 30 years, ever since NORAD's North Warning System detected the craft that brought the infant to Earth as it entered airspace just shy of the Arctic Circle, especially after seismic disturbances in the area at that same time indicated that something else - something much bigger - smacked into the snowy white and is still obscured by a seemingly-eternal freak whiteout. An attempt by some of Hardcastle's junior associates by helicopter to pursue Clark across a glacier doesn't end well for them (they do survive), but for Hardcastle this only affirms the threat posed by an unchecked extraterrestrial presence. Although I must admit that in this story Hardcastle would ultimately prove to be more of a nuisance than an out-and-out villain; I'd save that for a certain charismatic bald industrialist and his latest creation, a robot powered by low-level-radioactive meteorite fragments and operated by one's neural engrams via remote-control...
Anyway, Clark pierces the whiteout and reaches a sprawling crater in which rests a massive Arctic lake, and at its center...a towering two-hundred-foot spire of blackened ice leaning at a bizarre 45-degree angle; the biggest honkin' stalagmite you've ever seen. Freezing a walkway toward the structure via his ice-breath (as he's not keen on flying - we later discover that his unconscious brainwaves become magnified every time he uses his powers, thus enabling Hardcastle to track the alpha waves of his brain), he ventures into the monster icicle and discovers a bisected orb that lights up in concert with a small, pentagonal crystal pendant strung around Clark's neck - a pendant embossed with a familar S-looking shape; a bolt of energy crackles from the medallion into the levitating orb as the orb twists in opposite directions at increasing velocity, and Clark reaches out to touch it, engulfed in white light, which dissipates to reveal a massive cathedral-like sanctum whose stained-glass windows betray a cityscape of pyramids and obelisks, columns and coliseums, small twin-engine chariots floating between buildings and armored robotic centurions on guard...a futuristic pastiche of ancient Rome and Egypt, medieval England, and feudal Japan all in one; the lost civilization of tomorrow - Krypton.
And as the approaching simulacrums of Jor-El and Lara explain, all of it sadly no longer exists, save for this pocket-dimension virtual-reality created by Clark's biological parents, newly-updated on his life among Earthlings as the result of the recent download from his medallion, which has analyzed, decrypted and archived Clark's own neural engrams from day one.
That's as far as I've gotten with this idea; I suppose I could extract and rework elements of my previous reboot idea to fit into what I wrote here, with some more improvements, but the idea is to get the origin out of the way and move on to a villain capable of taking Superman hand-to-hand as quickly as is reasonably possible - not that I want a brainless actioner; the humanity and fun spirit would still be paramount to the whole deal...case in point: there would have to be an obligatory moment going back to Smallville where Clark reunites with Ma after having been all over the world amassing experiences (and a priceless scene of him using his heat vision and a couple bathroom mirrors to shave and cut his hair), but I haven't got that worked out yet.
Some other details that are mentioned in this story, although not all would be that well touched upon in a first film in a series:
- Lana Lang is a Kansas Senator in this version; as Hardcastle knows she graduated from high school with Clark Kent, he's pretty sure she's in on the secret.
- General Zod sacrificed his life to ensure the survival of Kal-El's escape ship back on Krypton; however, this does not exclude the possibility of a General Zod from an alternate 'mirror' universe, goateed and thusly evil a la Star Trek (and akin to the first post-Crisis Zod), showing up in a later film.
- Krypton had a sister planet called Argo that was tossed askew in the blast, nodding to the DCAU (and keeping open the possibility of Kara showing up in a later film).
- Doomsday is already on Earth, frozen over deep in Antarctica hundreds of thousands of years ago.
- Brainiac is a Coluan cyborg, Vril Dox, and has already been on Krypton and gone (not surprisingly, the chief city-state of Kandor was mysteriously obliterated during that time...); physically, he resembles the DCAU Brainiac on the outside and the '80s version on the inside.
- A lot of the nostalgic references/homages in this film would be less to past versions of Superman and more to the classic sci-fi movies that I've been exposed over the years - there'd be a lot of Vulcan from the Star Trek films in Krypton and its culture (aside from the historical influences); Metropolis would very much be the Metropolis of Fritz Lang, with the Lexco corporate headquarters as our Tower of Babel (and yes, I know it's called Lexcorp in the comics...); Emil Hamilton would be the founder/owner of Star Labs and would be heavily influenced by Doc Brown in "Back To The Future"; and if we ever got to it, Doomsday's introduction would very much be in homage to Carpenter's THE THING, with an Antarctic research team chopping him out of ice with bloody consequences.
Oh, and I'd call the whole first film LAST SON OF KRYPTON.