As I understand Bryan in that video, he only talked about integration of Advanture Labs into the Geocaching App.
So i think it's about integration of both Apps in one (which could be a fine switch for non-GPS-cachers). For me the comment of Bryan is not pointing on an integration as "full cache type" like virtual or EC on geocaching.com.
For me that would be fine, because otherwise it would fully destroy my milestones of found caches...
If I misunderstood that, I hope for an opt-out solution (not counting Adventure Lab founds) or at least for an "not count Lab found until date x.y.2020 option" so that all milestone-lovers like me can still "secure" the milestone-history. For me milestones are a part of my geocaching-life and history.
Since the first Lab Caches was published it was a fix rule of Geocaching, that no lab cache will count as normal cache (challenges, logs, pictureupload, DNF, note, long-term availability...).