I'm not sure. It depends on how it goes, but my first instinct is no. I have another challenge in mind that is somewhat related, though, that will take advantage of the new features. It'll be a running experiment in the way that Morul has been (I can't tell you how much I learned about the game doing this, which was my real motivation) but I'm hoping won't be quite as tedious and will be more challenging from a fortress design/manageability standpoint, while still allowing me to learn everything about the new version.
Think of it as a hermit challenge meets Lashedwines (Morul) meets Flarechannel, possibly done as more of a story with a plot and shit (the plot and shit is already worked out, I just don't know if I have the energy to do it, especially after the life intervention I just came out of). I'd probably do it Moby Dick style, alternating between first-person narrative and narrator. The fortress takes place after Lashedwines, but Morul has a bit of a cameo at the start of the story and is remotely involved in the formation of the fortress. It's designed to incorporate the changes to the game into the story, so I'd really like to do it.
I'll need a dwarf heaven type site such as this (whatever that looks like in the new version) and probably similar amounts of modding to open up every game feature in one location, and that too will have to be worked out at least far enough to know what needs to be done before worldgen. I can work out the rest on the fly.
I got the idea about the time that Toady moved the development notes from the countdown to the log, so conceptually it's pretty well set.