There’s a NetBSD Hackathon going on February 10th through 12th, mostly online. I mention this because it may have some effect on pkgsrc, used by both NetBSD and DragonFly. Hackathons for pkgsrc usually happen separately, but no harm in keeping an eye out for any positive benefits.
A running description of activity related to DragonFly BSD.
Not to mention code that came to DragonFly from NetBSD itself like tempfs, tnftp, libm, Citrus, Device Mapper, proplib, and various drivers ;)