Last month, I finally got the new 1967: Sunshine tomorrow album. I've listened to it only twice so far (and in between I listened to the old Smiley Smile/Wild Honey reissue), but the first time I listened to it, I noticed some lyrical connections among songs on Wild Honey.
There's a "theme" (of sorts) of honey and bees. Obviously, this is in the title track, which compares loving a girl (who has "the sweetness of a honey bee") to "a taste of wild honey." Later on the album, there are the lines "I'm like a busy bee" (in "I'd Love Just Once to See You") and "Let the bees make honey" (in "Let the Wind Blow," which is also the origin of the phrase "sunshine tomorrow" used for the album title).
The other connection I found doesn't seem as significant. Near the end of "Wild Honey," there's the expression "sock it to me, wild honey," which is also at the end of "How She Boogalooed It" ("Come on, sock it, sock it to me / S O C K I T to me").