I've been thinking about it, and I do want to do a sequel to I Am Not Sombra. Problem is: I've no idea what kind of plot a sequel would revolve around other than general points, or what to do with it (other than a chapter for Cadance's trial+pardoning). I'm open to suggestions though if you have any and want to send them my way.
Also read Applejack Is An Interdimensional Alien