Personally, I'd like to see either a new comic or a few art pieces that are original and can stand on their own. To be quite honest though, I've loved everything you have submitted thus far, and am confident I'll love whatever you have in mind for the future.
If you can, a continuation comic for TCM (something like FADE for SHIFT) or maybe even a prequel delving into Kira's life with Rikus. I would love to also see you do another original comic! But in the end, it's up to you!
depends on the ending of TCM. if it ends in a cliffhanger or if there's more to the story you wanna explore in a different comic, then go for it. If not, I would love to see another comic you make if you're seriously up for it. Again, it all depends on what you wanna do!
lol . . . you forgot an "All of Above" and a "Whatever you do is fine with me" choice, because that's seriously what I'd go for. Though, I'm sure you've got a lot of great ideas that long for the amount of attention The Cloud Make is getting. But yeah, whatever you decide to do, whatever inspirations that decide to pop up or bombard you, it's up to you.
Oh man, so hard to choose. Do whatever you want to do, I'm sure your watchers will support you in whatever you decide to choose. Perhaps you could do a mix of everything? Some tutorials here and there amongst whatever you end up choosing?