Shane - they haven't updated or mentioned any further details on timing since the Summit. I'm adding and mentioning my friend
Justin Cooperman at Marketo who may be able to provide some updates for us. Justin let us know!
Awesome to hear that you're eager to get your hands on the next gen UX! We've been working really ******* it and will be having an "early access" alpha group piloting the experience starting in around ~1 week. However, this is intended to be a small closed group of customers that will be pounding on it and giving us feedback through the end of the year to help us prepare for a broader "opt in" beta period that we plan to launch for all customers (likely in the beginning of 2018).
So, stay tuned! We'll have more updates as we get closer to that milestone!
This is good to hear. It sucks it is going to be so long before we get to use it, but this is at least something to look forward to.