Aha, looking at the upcoming episode list now, I see we'll have ponies every Saturday for a while!
"The Mysterious Mare Do Well" -- November 26th
There is a new masked hero in Ponyville who is stealing Rainbow Dash's thunder.
"Sweet and Elite" -- December 3rd
Rarity must choose between her friends and important social connections in Canterlot.
"Secret of My Excess" -- December 10th
Spike gets greedy on his birthday and has a huge growth spurt that could decimate Ponyville.
"Hearth's Warming Eve" -- December 17th
The six friends are in a play about the founding of Equestria for the Hearth's Warming Eve's holiday pageant.
I believe the winner here is Secret of My Excess, 'cause, yeah, Spike-centric episode. :3 Squee~ /heavy-Spike-bias
EDIT: Just watched the most recent episode.
Clearly Rainbow Dash wants a Koopa Troopa.