Thanks everyone, we're seriously pumped for April to start

@JML: Yes, summer is where we want things to pick-up, when we deliver Mote to supporters expecting it in June. The interface changes promised in the 2nd stretch goal will come a little later, however, as there are a lot of areas that need a re-write.
@aliasMask: Yes, it will be multi-tabbed. There are currently very few docking frameworks available for JavaFX, so we will be looking for alternate methods of making components accessible, while keeping as much of the screen area available for the map. We do want the same thing with regard to separating IIC, OOC, macro output, and error details, in their own separate windows. And yes, inter-player / player <-> GM PMs will create another room on the "dock".
On the subject of backward compatibility, we're pretty sure that anything that runs on b86+ will run on Mote. Though there will likely be problems, initially, with frameworks that have a lot of escapes for Unicode, and in-macro workarounds for the previous JSON library's "quirky" methods.
As for forums, we'd like to keep everyone together here, as much as possible, and, barring a sub-forum, keep threads active for bug reports, discussions specific to Mote, etc. We will put one up, however, if Mote activity becomes too "noisy" here. We do find the notion of users having lesser posts to sift through for help appealing, however. Personally, I still believe MT 2.0 will become a reality, moreso that the "pressure" of releasing it, has become more relaxed in the advent of Mote for the interim.
You're right about the marketplace. We'd prefer something community driven in that regard, though it's not out totally of the question. Aside from a straight-up implementation, we could probably create an aggregation of resource locations on the back-end, so content providers can host wherever they want, and provide a front-end for users to interact with. We'll be slowly writing a cloud server for people to use/deploy, and add capabilities to it over time. Either implementations stated above could eventually be run from this.
@CoveredInFish: Hopefully we'll get to there eventually

We will have some primitive implementations in the GUI revamp, however, that might allow users to refer to external resources and display them in-app. So, theoretically, people can use a WYSIWYG editor somewhere out there, add components, content, and script behavior on the page itself, and host it externally, to be displayed in Mote when it is fed with a resource location. However, there will still be no bridge between the page's data, and Mote, for the meantime, much less a connection to MT script, and, even less, leveraging the bridge between Java <-> Javascript that JavaFX provides.
@Full Bleed: Nah, it was a miracle shot from someone named Luke (wow, all these Star Wars' references

) After I made a jest on the G+ commmunity, a few seconds after he came in with $9 (and then some) to round things out, and in the final minute upped it to reach the 2nd stretch goal. I can't put my finger on it, but I already like the guy

As for skinning, it will be a collaborative process between our team and interested theme makers, on what should be there, and where, not to mention that most will probably need to read up on FXML to go alongside with their CSS knowhow, to make this real. So, I'll say upfront that it will be slow getting there for a while. But I have not doubt that things will pick up once those particulars are all set

@wolph: We agree. Since we cannot prepare for every eventuality for every framework out there, Phase 1 Mote will likely introduce a lot of upheavals in how people normally do things, and expect with regard to performance and memory management. While we have long road map to get to a more efficient state (with all the added baggage of the new features), it is too optimistic on our part (Idle Ideas) to expect pain-free backward compatibility from the onset.
It will take some time to roll out the new GUI, but I'm certain the current one for Mote will hold stead well enough in the interim. As for the wizards, now that we know what GUI they will be built under, work can finally commence on them in earnest (we didn't want to write for Swing, and re-write for JavaFX, you see).
Thanks again everyone. There's a lot of work to be done prior to April, specifically working with our top-level supporters and their campaigns/frameworks so that Mote will be ready for the closed beta. With that being said, I'm sorry to just post this and go. I might not always be around here in the forums during this period, but you can always reach us through Mote portals on G+, FB, or e-mail.
See you all soon!