How The Mean 6 should have ended

Celestia is lying on a hospital bed, the survivors stand around her, the room is deathly silent except for the life support equipment.

"Her wounds are fatal" Starlight finally says, after her third scanning spell

"Do not grieve, for soon I will be one with The Sun" Celestia says in a quiet voice

"Celestia..." Rainbow says, unable to say anything else...

Celestia takes some pained breaths, before turning to face her pupil, Twilight Sparkle "Twilight...my friend...it is to you that I grant my mantle...Princess of The Sun...as it was...granted to me..." she says, each word makes her tense up in pain.

"Bu-but Celestia...I'm just a school teacher, I'm not worthy..." Twilight says, hanging her head low.

"Neither was I...but...one day...a pony will rise...and use her power, to light our darkest hour" Celestia takes a few more breaths, before slowly closing her eyes, the colour drains from her mane and the machines flat line.

Optimus Prime stares at the now blank screen dumbfounded, confused, bewildered. He then looks back at Wheeljack, who's looking back at him expectantly "Why?" he asks

"Well Optimus, I was thinkin we could always improve our combat strategies so I threw together this here simulation" Wheeljack, the Autobot scientist explains

"Yeah I get that" The larger bot starts "but...why ponies?"

"What do you mean?" Wheeljack asks like he'd just grown a third arm

"Why ponies? I mean, why not Cybertronians?" Optimus asks, still very confused

"Oh uh...no...no reason I...uh" Stammers the scientist

"Do you have something you need to tell me friend?" He said, standing up and looking down at the bot

"No, nonono I just gotta...uh...debug the dinobots, they're probably lighting stuff on fire again bye" With that Wheeljack leaves as fast as he can, leaving Optimus still confused, then he also leaves, but not before wiping the terminal of all video footage.