The episode after the upcoming Applejack one is called "Top Bolt" and the synopsis reads as this:

The Cutie Map calls Twilight Sparkle and Rainbow Dash to the Wonderbolts Academy to solve a friendship problem.

who else feels kinda hyped because this could mean the return and redemption of Lightning Dust.

It all depends, Lightning was not mentioned in the synopsis, but ,2 new characters Vapor Trail and Sky Stinger are mentioned. If she does appear I'll be happy, if she doesn't Im not gonna be suprised.

5528052 Honestly, I doubt she'll reappear after all this time, but you never know...

5528052 Doesn't sound likely given the extended synposis.

If not this episode, then definitely the two-parter.

5528052
I think it might just be a dispute between Spitfire and Soarin and/or Fleetfoot