And I wasn't meaning they would make it like Twilight/Vampire Diaries/Teen Wolf or One Tree Hill/90210/Secret Circle, where its a young cast and turns off a lot of people because of the cast. I just meant that the studio might want to turn the X-men (who started out as young students) into young students for the show. That would help bring in younger viewers and you would still have some older characters like Xavier, Wolverine, Magneto, Miora McTaggert, Senator Kelly, Mystique, etc. And the age range wouldn't just be 17 year olds. I imagine it would be somewhere along the lines of Buffy or Smallville, where the characters ages varied. the original 5 students might have started at ages from 14-18, and so a year later their ages range from 15-19 and the new students ages could range from 17-22 and Wolverine could be 30-40. As the show went on the characters would get older. Like Smallville the show could go on until a character like Cyclops who started out 17 or so is now around 22. And while characters like Iceman who started out being 15 or so and is now in his 20s you can have new and younger characters brought in. Front for example, or Dazzler, or Cannon Ball or Multiple Man.
The age thing I would imagine would also be along the lines of that 70s Show, where the cast started out being young high school kids ranging in the ages of 15-18 and the show ended with then in their 20s. (The actors playing them were older than the characters they played except for Jackie who was actually 14 when he character was 16 I think.)
My point is that I think the studio would take them back to their high school roots, at least a portion of the cast, in an effort to bring in a young crowd and to help the story along. A young high school cast (like Buffy) doesn't have to mean a bad thing.
In my idea for my version of the show:
Younger cast:
Season 1: Scott (18), Jean (17), Warren (18), Hank (18), Bobby (16), Xavier (35), Xavier's girlfriend Nurse (25), Magneto (38-40), Quicksilver (18), Scarlet Witch (17), Toad (26), Mastermind (30)(45), Mimic (15), Blob (16)
(theme of season 1: What are Mutants/Xavier's Plan)
Season 2: Scott (19-20), Jean (17-18), Warren (19-20), Hank (20), Bobby (17-18), Xavier (36), Moira McTaggert (28), Magneto (39-41), Quicksilver (19), Scarlet Witch (18), Toad (27), Mastermind (30)(46), Wolverine (28-35), Banshee (25), Sunfire (21), Storm (16-17-18), Colossus (17), Nightcrawler (16-17), Kitty Pryde (15-16), Thunderbird (15-17), Senator Kelly (35), Trask (38-48), Graydon Creed (25), Juggernaut (39), Sabortooth (45-50 but the actor playing him could be younger), Reverend William Striker (45-50 and looks it)
(Theme of Season 2: Xavier expands and alters his plans/Humans are the enemy?)
Season 3: Scott (21-22), Jean (19-20), Warren (21-22), Hank (21-22), Bobby (19), Xavier (37), Wolverine (36), Banshee (26), Storm (17-18-19), Colossus (18), Nightcrawler (17-18), Kitty Pryde (16-17), Rogue (15-16), Psylocke (16-18), her brother Brian (19-20), Senator Kelly (36), Trask (39-49), Graydon Creed (26), Juggernaut (40), Sabortooth (46-51 but the actor playing him could be younger), Mimic returns (17-18), Mystique (35), Avalanche (20), Pyro (17), Blob (18), Destiny (68-78), Callisto (26), Morlocks (who could be any ages from 8-100)
Characters that might not be on the show anymore (or leave this season):
Moira McTaggert (29), Magneto (42), Quicksilver (probably left show but 20), Scarlet Witch (probably left show but 19), Toad (28), Mastermind (probably left show but 30)(47), Sunfire (off the show), Reverend William Striker (45-50 and looks it), Thunderbird (dead),
(Theme of Season 3: Mutants Strike Back/Mutant versus Mutant/Death leads to things getting real)
Season 4: Scott (23-24), Jean (21-22), Warren (23-24), Hank (24), Bobby (20), Xavier (38), Moira McTaggert (30), Magneto (43), Wolverine (37), Banshee (if still on show 27), Sunfire (if returned 23), Storm (18-19-20), Colossus (19), Nightcrawler (18-19), Kitty Pryde (17-18), Rogue (16-17), Psylocke (18-19), Havok (22-23) or (24-25), Polaris (20-21), Valerie Cooper (25-30), Senator Kelly (37), Trask (40--50), Graydon Creed (27), Juggernaut (41), Sabortooth (47-52 but the actor playing him could be younger), Mimic returns (18-19), Mystique (36), Avalanche (21), Pyro (18), Blob (19), , Callisto (27), Morlocks (who could be any ages from 8-100), Mister Sinister (30), Gambit (18-20), The Marauders (age range would be from 35-45), Black Tom (30), Emma Frost ( 19-20), Bishop (20-25), Forge (25)
Characters that might not be on the show anymore (or leave this season):
Destiny (dead)
(Theme of Season 4: Using Mutants/Mutating Mutants)
and just because its fun to imagine
Season 5: Scott (24-25), Jean (22-23), Bobby (21), Xavier (39), Moira McTaggert (31), Magneto (44), Wolverine (38), Storm (19-20-21), Colossus (20), Kitty Pryde (18-19), Rogue (17-18), Psylocke (19-20), Cannonball (15-18), Dazzler (15-16), Karma (16-19), Wolfsbane (15-17), Mirage (18), Sunspot (14-15), Majik (14-15), Magma (17-18), Valerie Cooper (26-31), Cypher (14-16), Sabortooth (48-53 but the actor playing him could be younger), Mystique (37), Avalanche (22), Pyro (19), Blob (20), Gambit (19-21), Emma Frost ( 20-21), Bishop (if still there, 21-26), Kevin MacTaggert (13-14 but always in another's body), Shadow King (current body is 45-50), Dr. Kavita Rao (38), Hellfire Club (ages 30-40)
Characters that might not be on the show anymore (or leave this season):
Warren (might have left show because of wings, but 24-25), Hank (might have left for college, but 25), Nightcrawler (might have left show because of make up, but 19-20), Senator Kelly (if still on show, 38), Trask (probably not on show, but 41--51), Graydon Creed (probably not on show but, 28), Juggernaut (probably not used this season, but 41), Mimic (probably not featured much if at all, but 19-20), Mister Sinister (probably not shown, but 31), Callisto (probably not shown, but 28), Havok (23-24) or (25-26), Polaris (21-22),
AND by this point even characters like Scott and Jean can leave the show if the actors want out because the show could become a more rotating cast like Law and Order or something, where it wouldn't depend on any particular character staying.
(Theme of Season 5: Mutants using Mutants/Days of Future Past)
So, as shown, my idea would revolve around a cast of characters varied in age
but the main cast would start young but quickly get older as the seasons progressed.
But this is just my idea (I am not saying this is what the show will do).
But I do see them at least wanting to go the young students route to bring in younger viewers to watch the show.