[quote=@Sep][@Ellri] has not said you absolutely [i]can not[/i] have it. Just that it's creation would need to be well explained.
[/quote]

This can not be said enough. The idea hasn't been rejected just asked for justification. 

That all said, as much as this is RPG's Persistent World RP, it can't please everyone. Expanding Horizons tried and it didn't fair well so if the GMs do ultimately decide to ban a lightsaber design that was used by one Jedi-in-training in a recent animation, I really don't think that's a big loss.