Energy Sword Ideas

I began to watch Halo Legends: an 8 part anime series produced by 343i and WAYPOINT just yesterday and I began to wonder in the fourth segment if these ideas might be implemented in Halo 4.

Halo Legends:

[/li]- Halo Legends 2: Dual Wielding Swords

  • Halo Legends 4: Forerunner sword that shoots a plasma shot.

Now everything the halo franchise has demonstrated, PAX & FEST have all declared it all leads to Halo 4. So what are your thoughts? What ideas would you like to see 343i implement to improve the current sword?